A weird water heater code flashing in your face doesn’t help. AO Smith tankless fault codes might be confusing, but we’re here to help you decipher them.

Also Read: AO Smith Water Heater Reviews

However, this will necessitate people to learn more about AO Smith Tankless Water Heater Troubleshooting to understand the error and the solution. With that being said, here in this article, we’ve listed a few error codes and discussed their solution.

Is There A Way To Find AO Smith Water Heater Errors?

Tankless water heaters from AO Smith that are fitted with a remote controller have a significant benefit; they offer a self-diagnosing capability that assists in diagnosing heating problems. 

If there is a problem with the water heater, a sound will be made by the installed remote, and an error number will be shown on the screen.

These codes can be displayed on remote controls for some models, like the 240, 340, and 540 series. Similarly, an error code will also be displayed on the appliance’s LED display in place of the temperature.

However, in a model like the 510 series, a message indicating an error code will be displayed on an LCD. Others, like the 110 and 310, have a red light on the appliance that blinks rapidly. 

Also Read: Comparing Rheem vs AO Smith Water Heater

When an error occurs, the light blinks a different number of times. But it’s better to check your owner’s manual to determine what model you have and where the error code can be found.

AO Smith Tankless Water Heater Troubleshooting

Here’re the error codes you’ll see if your water heater was installed correctly in accordance with the manufacturer’s specifications.

Error Code 031, Flash One Time

What Is It?

If you’re having error code 31, that means some problem arises in the setting of the water heater’s dipswitch.

Troubleshooting

First of all, stop the power supply. After removing the front cover, you’ll find the dipswitches. Now it’s time to check the dipswitches and make sure they have been installed correctly.

Error Code 101, Flash Five Times

What Is It?

This is an alarm code that indicates abnormal combustion.

Troubleshooting

First, check if there’s any blockage in the airflow. To do so, you can check the fan, venting length obstruction, heat exchanger, etc.  And if necessary, make adjustments to the manifold pressure to achieve the desired results.

Lastly, clean the fan motor and gas burner if they’re dirty or greasy. Ensure that the inlet is free of debris, such as dust and grease. Finally, restart the system after all the installation.

Error Code 111, Flash Three Times

What Is It?

An ignition failure means that the unit will not turn on after three failed attempts to start it.

Troubleshooting

Verify that the hi-limit switch is functioning properly and that no wires or connections are loose. Make sure to call for help if it’s tripping and you don’t know why it’s doing so.

Then check the flame rod if there’s any coal dust or not. Lastly, examine the computer board to ensure that it isn’t damaged and no loose wires or connections.

Error Code 121, Flash Three Times

What Is It?

During operating, there’s a reduction in the amount of flame.

Troubleshooting

First, check the hi-limit switch and computer board. Then check to see that there’s no obstruction in the gas supply and the gas is turned on at the proper pressure. However, vents may be obstructed, so look for them.

Error Code 311, Flash Two Times

What Is It?

This is an output thermistor (heater’s component that produces a modest electric current) error.

Troubleshooting

Inspect wire connections to ensure that they’re secure and free of burns or cuts. The output thermistor is located on the right side of the heat exchanger, near the bottom. Check the resistance value; it should be around 74°F at room temperature.

Error Code 321, Flash Two Times

What Is It?

This error is shown when a failure is found on the outlet thermistor.

Troubleshooting

There should be no damage to the thermistor wiring connection. That’s why clean the thermistor if it has become clogged with dirt or debris, if necessary. Still, if the code error continues to occur, the outlet thermistor should be replaced.

Error Code 331, Flash Two Times

What Is It?

An error occurred in mixing the thermistor.

Troubleshooting

The thermistor wiring connection should be undamaged. That’s why it’s important to clean the thermistor if it gets clogged with dirt or debris. Even so, if the code error persists, it’s time to get a new outlet thermistor.

Error Code 341, Flash Two Times

What Is It?

This is the alert of the failure of the exhaust thermistor.

Troubleshooting

Check the thermistor and clean it thoroughly.

Error Code 391, Flash Two Times

What Is It?

This is the air-fuel ratio (AFR) failure.

Troubleshooting

To be safe, make sure the wire connections are tight and no cuts or burns on them. Check if the clear plastic tube that connects the proportional gas valve to the combustion chamber has been properly installed. Lastly, clean up the AFR if needed.

Error Code 441, Flash Two Times

What Is It?

This code means that the flow sensor isn’t working properly. As a result of the master unit signalling another heater to begin operation, the latter fails.

Troubleshooting

Find out if there’s a water supply to the heater that’s out of order. To prevent damage to the computer board, check for frayed or broken wires. The inlet filter should be free of debris. Lastly, make sure the flow sensor is clean.

Error Code 510, Flash Six Times

What Is It?

A problem arises in gas valves.

Troubleshooting

Shut off gas and power to the unit immediately if the hot water is turned off, but flames are still visible through its sight glass. Inspect all the wires connecting the gas valve assembly for burns or cuts.

Ensure that each gas valve wire is connected to the correct location if the device has recently been repaired. After all, these make sure the supply gas pressure is within the specified range.

Error Code 611, Flash Four Times

What Is It?

The code indicates the abnormality found in the fan motor.

Troubleshooting

Examine the fan motor wiring for damage and the PC board for moisture. Before turning the power back on, if there’s any moisture, allow it to dry thoroughly. If the problem still persists, a new computer board may be required.

Error Code 651, Flash Four Times

What Is It?

There’s a problem with the flow control valve.

Troubleshooting

Turn off the electricity first. Wire connections must be safe and free of burns. The cold water inlet is connected to the flow adjustment valve, hidden behind the computer board. Check the valve for water leakage and clean the flow adjustment valve if any dirt or debris is found.

Error Code 661, Flash Four Times

What Is It?

Damage found in bypass valve.

Troubleshooting

First, you have to check the flow adjustment valve for any damage. And then check if there’s any build-up on the motor drive. However, don’t forget to check for any water leakage.

Error Code 701, Flash One Time

What Is It?

The motherboard of the computer is malfunctioning.

Troubleshooting

You should ensure that all of the cables are connected correctly and that there’re no fractures in them. Take a good look at the board for any signs of a burn or cut. Check to verify that the machine has a working power supply.

Error Code 711, Flash One Time

What Is It?

The gas solenoid valve driving circuit has failed.

Troubleshooting

Wire damage should be looked for in the hi-limit and overheat cut-off switches. Don’t forget to check the gas valve’s control board connection.

Error Code 721, Flash One Time

What Is It?

The error shows the false flame detection.

Troubleshooting

All gas and electricity must be cut off first. The flame sensor may be the source of the issue. To get further help, contact the Technical Service Department.

Error Code 741 and 751

What Is It?

The water heater and the remote controller aren’t communicating properly. You may experience these errors if you unplug the heater’s remote from the power source while the heater is running.

Troubleshooting

Before unplugging the remote, turn the power off. You should verify that the remote and the water heater are properly connected. Get the right remote control before starting.

Signs of damage, such as burned wires or a faulty control board, should be looked for. LCD screens may flash if the power is off for a brief period.

Error Code 761

What Is It?

In an Easy-Link system, there is a communication breakdown between master and slave units. This error message indicates that the master unit has lost contact with the heater it is referring to. 

Troubleshooting

Verify that the item that has lost communication is receiving electricity. If you’re not sure how to set up communication cables, go to the Installation Manual. Do a visual inspection for indicators of voltage spikes.

Error Code 991, Flash Five Times

What Is It?

Inadequate gas combustion is what the code is showing.

Troubleshooting

If you’ve tried everything else and nothing has worked, contact the Technical Service Department. The gas pressure in the manifold may need to be adjusted. Restart the computer if you’re certain that the issue has been resolved.

FAQs on water heater troubleshooting

• Why does a tankless water heater beep?

If there’s a problem with your tankless water heater, it’ll “beep” and show an error code. In the event of a breakdown, malfunction, or leak, tankless water heaters will emit an audible alarm.

• Should I switch off my tankless water heater if the water is off?

As tankless and point-of-use water heaters don’t operate heating elements constantly or store water in a tank, they don’t need a water shutdown.

• How can I alter the AO Smith tankless water heater’s temperature?

Both thermostats should be set at 120 degrees Fahrenheit. Turn the water temperature dial clockwise (>>) to raise the temperature if necessary. To lower the temperature, turn the dial counterclockwise ().) Both thermostats should be set to the same temperature.

• How often should tankless water heaters be flushed?

Every year, tankless water heaters must be cleansed to ensure proper operation. Residents with hard water should flush and clean their water treatment systems more often, potentially every six to nine months.

Final Thoughts on AO Smith Water Heater Troubleshooting

Now that you’ve learned a bit more about AO Smith Tankless Water Heater Troubleshooting, you’ll be able to start repairing any issues on your own. 

Just keep in mind that if you’re unsure about anything, you should contact a service specialist. When it comes to gas and electricity, safety is of the utmost importance.

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Related Resource:

Rinnai Tankless Water Heater Troubleshooting

How to Test Water Heater Thermostat

There’s always a famous quote “What’s with the name”! But whenever we go out to buy a product for your home, your office, or a small commercial space, the first thing we look for is the brand. Yes, this is the power of having a pioneer branded product for your home.

You know that it’s going to be fairly high priced and similarly, it will succour you for long. Compiling a list of the best water heater brands is always a difficult task in hand. It’s mainly because there are a handful of brands and their consumers are spread out worldwide.

However, after extreme research, we’ve compiled the best list and you can have a look at ’em.

7 Best Water Heater Brands in the Market

1. Rheem Water Heater

Needless to say that Rheem is one of the most profound contributors to the water heater industry over the years. This enormous brand started to be manufactured way back in the year of 1925 bringing up the manufactures to a peak.

Rheem has laid its mark over the world with nearly 100 years of experience. But now, it seems to be one of the largest brands ever to manufacture a water heater. This company has started it all with a simple motto – to help families enjoy ultimate comfort throughout.

When it comes to the most extensive range of water heater distribution, Rheem is one such brand that sits at the top establishing in the market. The signature models are the tankless water heaters that can always recover quickly and also require very low maintenance.

From Our Surveys: 4.8/5

Recommended: 96% Customers

I have been using my Rheem water heater for 5 years until now and I have just one thing to say, “it’s magnificent!” It could always help me while taking the long hot showers and needless to say that I have never been disappointed. It simply just takes low maintenance.

⭐Check Why Rheem Is Our Experts’ Pick⭐  

The Rheem water heater brand is one of the most reliable in the market, and for a good reason. The manufacturer has a long history of producing quality appliances, and its products have always been known for their durability.

If you look at Rheem vs AO Smith water heater or other water heater brand comparisons, you may notice solid differences. So let’s have a closer look at some of the significant factors regarding Rheem water heaters:

Wide Variety of Products

Rheem has designed countless products throughout its 100 decades of operation. Still, it is currently the sole company that builds pool & spa heating, water heating, cooling, heating, and commercial refrigeration units.

The company operates the largest water heater manufacturing facilities in North America. So, regardless of whether you live in a compact apartment or a single-family home, you’ll certainly be able to locate a Rheem water heater that’s appropriate for you.

Sustainability

Rheem Electronics’ “zero waste” model makes it stand out from the competition. The company is dedicated to its vision of respecting the environment, and it has undertaken the initiative to change to be environmentally friendly. 

Rheem Electronics has developed energy-saving products, including the Professional Prestige Series. 

Most of the units in Rheem’s lineup have a built-in recirculation pump and a hot-start program that minimizes the peaks of cold water circulation during vital moments.

Award-Winning Innovations

Even many decades after its founding, the company has always invested in innovative ideas and technologies utilizing cutting-edge developments to provide advanced comfort, experiences, and savings to customers. 

Since the company has been around for a long time and offers a wide range of award-winning solutions, customers can feel assured in investing in it. 

Rheem has been a pioneer in developing some of the most shout-after innovations in cooling, heating, and hot water heating. 

Greater Lifespan

So, how long does Rheem water heater last? Depending on the model and care, your Rheem water heater is likely to last 8 to 15 years.

A much better likelihood of it lasting 20 years is if you take care of your water heater and receive regular maintenance. Numerous Rheem water heaters sufficed for almost 30 years. That’s quite amazing to worth your money indeed.

Expanded Manufacturing Facilities and Retail Areas

Rheem Manufacturing’s corporate headquarters are located in Atlanta, GA, but its water heating products division is in Montgomery, AL.

As we mentioned before, Rheem is a global firm that manufactures a diverse range of products, including refrigerated products, water heaters, and more. 

So, their water heaters are available in other places around the world. The company offers them in Japan, New Zealand, Australia, Singapore, Brazil, Argentina, Mexico, Canada, South America, and the Middle East.

Satisfactory Warranty

The warranty policy of Rheem is one of the greatest in the market, serving subrogation for most models up to 12 years for the principal elements and lifetime or ten years conditional replacement guarantee.

Rheem has a proven track record of customer service in Florida, earning a grade of A from the BBB. 

Under warranty, Rheem will provide any replacement parts that fail due to a problem in workmanship or materials during the nine years immediately following the three-year Full Warranty period.

If a water heater has leaks after the original installation, a replacement water heater will be covered. 

Best Rheem Water Heaters You Can Buy in 2024 – Quick Comparison

Check the comparison table of the best Rheem water heaters for a quick overview of each product:

2. Bradford White Water Heater

If it is about an all American company for your requirements, nothing can be better than Bradford White Corporation. This mighty brand is best known for its contribution to the commercial applications and especially the tankless water heaters that are available on the market.

Bradford comes with a variety of products from its cluster. They mostly feature both gas and electric based models. However, the price of the Bradford water heaters may seem to be a bit upscale initially, but for the long term, it’s a good catch. Most of the products from Bradford provide a trouble-free run.

The best part of having a Bradford appliance in your home is getting professional assistance you run into trouble with the heater. You may get a warranty of 10-years or even more on all the water heater appliances. People who have purchased the Bradford heaters have had a great run with their products.

From Our Surveys: 4.7/5

Recommended: 92% Customers

My Bradford water heater has been running for almost 6 years now. Initially, I thought that I’m investing too much into a simple water heater. But ever since I saw my friends be calling out a professional now and then, I feel relaxed. I have had no trouble at all. So it’s saved me money from the maintenance.

3. A.O. Smith Water Heater

Almost everyone in North America has heard about A.O. Smith. Not only because of the exclusive water heaters but also because of the multiple residential appliances they provide. Established way back in 1874, it’s still one of the most trusted hot water heater brands in the market.

A.O. Smith is mostly renowned for the enormous contribution to the water heater industry and the wide variation of products. But it is not all that makes this brand to be famous worldwide. The A.O. Smith water heaters include specific high energy efficiency ratings that are helped by others.

Furthermore, most of the heaters from A.O. Smith come with 2.5 gallons for the POU and to the large 120-gallon tank-based models. All of them are highly efficient and effective.

From Our Surveys: 4.5/5

Recommended: 90% Customers

I have seen a lot of people complain about A.O. Smith water heaters. But I had installed it way back in 2010 and it still seems to be working fine. I have not faced a single problem whatsoever with this product. Yes, I am happy.

4. Rinnai Water Heater

When it comes to technology skills and the efficiency of the products, Rinnai is one such top water heater brand that everyone relies upon. Founded way back in the year of 1920, it is one of the world’s largest Japanese water heater manufacturers. Surveys say that more than 32 million consumers worldwide prefer using Rinnai water heaters.

What makes Rinnai special amongst others is the reliable performance from all its heaters. Professionals do trust it more than any novice installing it. It’s mainly because all the tank based models from Rinnai come with extra care and safety features.

Thanks to the engineering and support from Rinnai, the water heaters come with an affordable range. There is a specified water heater for every level and you can find it in any market. Most of the products come with a 12-year warranty or more.

From Our Surveys: 4.3/5

Recommended: 90% Customers

I got inspired by using a Rinnai heater from my neighbor. He used it for 5 years and I bought the same model last year. Needless to say, I found this an amazing buy and at such a reasonable range. It seemed to be a great catch.

5. GE GeoSpring Water Heater

GE GeoSpring has been an interesting brand ever since it has been launched. Not because it is new to the industry, but because of the premium-quality manufacturing right from the start. As of now, it has established its mark all over the United States of America.

In just 6 years, GE GeoSpring has grown up to be one of the biggest manufacturers in the country with over 6 million consumers. The best part of using GE GeoSpring heaters in your home is to reduce the carbon content emission to a lower level making it environment-friendly.

As of 2016, Haier has purchased the rights of GE GeoSpring and now has renamed the brand as GeoSpring heaters. So if you are purchasing any of the GE GeoSpring models, it’s likely to be a hybrid version with the best performance.

From Our Surveys: 4.0/5

Recommended: 82% Customers

I have recently purchased the 5-gallon heater from GE GeoSpring. It’s been three years now and I had to change my filter only once. Other than this, it has always been reliable to use for my two showers and dishwasher.

6. EcoSmart Tankless Water Heater

If choosing a product within an affordable budget is a priority, EcoSmart is the best brand of water heater for you. Based out of the green energy technology, EcoSmart has been one of the most reliable independent manufacturers of water heaters.

The Ecosmart electric tankless models are some of the signature products of the company. However, it’s not only what attracts people the most. EcoSmart heaters come with renewed technology that can increase the performance by 45%. This will allow you to get more power with the heater.

EcoSmart has been producing some of the cheapest tankless heaters that come up with the Smart boost technology. This is a unique technology introduced by the manufacturer that increases the efficiency in a tankless water heater. So it gives the capacity just like a large tank-based heater. Moreover, this also saves up the costs for installation.

From Our Surveys: 4.2/5

Recommended: 85% Customers

For me, the EcoSmart water heater is simply the best that I could get. In fifteen users, I have tried out different heaters from multiple manufacturers, but I’ve never been so satisfied. Moreover, the product that I installed is much smaller and it saved a lot of space as well.

7. Stiebel Eltron Water Heater

The origin of Stiebel Eltron dates back to 1924 being one of the most reputed brands of the water heater industry. Coming from Germany, this brand has been manufacturing the latest technology in terms of new technology and development. It has been one of the most upbeat in the market today.

For more than 40 years, Stiebel Eltron has become one of the best in water heater technology. Not because it is innovative, but it is much more efficient in cost and maintenance. This is mainly because the water heaters from Stiebel Eltron can be installed in both indoor and outdoor necessities.

Stiebel Eltron follows a pump hot water system. This is the reason why it can offer a wide range of water heaters. They have the best latent heat conversion when compared with all the other water heater companies available. But the best part of all is that it provides a complete eco-friendly hot water solution to every home.

From Our Surveys: 4.2/5

Recommended: 85% Customers

I initially purchased my first Stiebel Eltron back in 2016 and it has been running great. I also recommended my model to some of my friends and colleagues and they are quite satisfied with it. I think I have made up the right choice for the product.

Conclusion

Having a reliable water heater means having assurance of your health and the heater’s long life. A trusted brand like Rheem is our best pick of all the other brands in the industry of water heaters today.

Not only it is an experienced campaigner in the industry but the constant upgrade in technology mesmerizes everyone. It’s a true gem if you have a Rheem water heater installed in your home.

We hope that we have answered your question “What Brand of Water Heater is the most reliable?” nicely in this article. Don’t forget to share your experiences in the comments section below.

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To be fair, it’s almost a neck to neck fight between the Rheem water heaters and the AO Smith water heaters. But, at the same time, it’s a difficult choice to pick out amongst them.

The ideal brand for your pick should depend on the type of model you choose and the individual requirements that you have. So let’s dally any further and goof off to the comparison – Rheem VS AO Smith Water Heater.

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AO Smith – A Brief Review

AO Smith is one of the leaders in the water heater industry to supply commercial and residential products. Most of the people know the brand value of AO Smith as a reliable tank-based water heater. But there are also tankless heaters available that come with high-efficiency.

Overall, AO Smith is a reliable brand for most of the consumers. Not only is it because of the price, but also the performance that the water heaters put up. Founded in 1921 by Olivier Smith, this company has grown to be one of the biggest in the world.

AO Smith EJC-6 Residential Electric Water Heater

• Compact design
• Side-Mounted Plumbing and Electrical Connections
• Designed for Installation UnderSide-Mounted Plumbing and Electrical Connectionsa Counter
• Durable Tamper-Resistant Brass Drain Valve
• No. of Elements: 1

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Rheem – A Brief Review

Rheem is one brand that everybody wants to have in their home because of the remarkable manufacturing of the products. The best part of having a Rheem water heater in your home means that it is quickly adaptive to a solar system.

The manufacturing unit was formed by brothers Richard and Donald Rheem and from there on, it’s a no looking back. The reason behind the growth of Rheem is mainly because the manufacturing was based on improving the quality over the profit. As a result, it has become one of the biggest brands with water heaters available all over the world.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

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Rheem VS AO Smith Water Heater

The best way to know a product is by comparing them with the same specs. Only when you can identify the differences in the specification of the same product from different brands, then you can make the best choice.

Here, we’ve compared the products depending on features and specifications to give you a better idea of the Rheem vs AO Smith water heater.

1. Gas and Fuel

Gas heaters available in the market are best known for the service. Since they consume low fuel, they are generally much efficient to use as well.

The gas heaters for AO Smith are widely famous because of the functions and the performance they provide. The AO smith has always focused on accomplishing the LEED ratings to make their heaters with a higher level of efficiency. But this brand makes sure that every gas-based model must come with low emission of NOx.

At the same time, Rheem comes with multiple lines of products when it comes to the gas-based heaters. Infact, most of the products are quite different in terms of levels and series. Rheem Gas Water heaters come with pleasant performance and are decent for the environment.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

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2. Electric Heaters

The electric heaters are superfast in performance and are a great buy for the people who rely on the performance rather than efficiency.

The Rheem electric water heaters are quite significant in performance and come with great compatibility. But the best part of choosing a Rheem electric heater is because of the quick start up it has. It requires much less time and effort to perform.

To be fair, it is an entirely DIY process that can be efficient to install. Moreover, every electric water heater from Rheem comes with double copper features that make it reliable.

AO Smith, on the other hand, has multiple levels of products when it comes to interior quality and performance. Each of the products covers the basic standards and this is the reason why they are quite safe to use for both home and commercial use. But, the brand offers the range of products on 3 tires evaluating their performance.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

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3. Tankless Water Heaters

Nowadays, there are almost 8 tankless water heaters in every 10 homes present. They are specifically manufactured to reduce the wait time and provide low NOx. To be fair, it’s one of the most advanced technologies used for a water heater.

The AO Smith models come with toxic-free ingredients that make their products safe to use. All of their products come with a digital display that can read out the accurate data and the information very quickly.

One the other hand, Rheem is one such brand that anyone will like to have for the highest efficiency. The tankless heaters from this brand come with a long lifespan. As a result of this, the heaters are much more stable even under extreme weather conditions.

The best part is that they have a massive range of UEF ratings.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

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4. Spare Parts

The spare parts and the interior elements within the AO Smith heaters are completely changeable. Because of this, it becomes much easier to remove the heating element or the multiple parts that are available within the heater. This implies both the tank and the tankless water heaters.

In the case of Rheem, the spare parts for a gas water heater are changeable. At the same time, there are more fixed parts in the tankless heaters. So at times, you may have to ask for a professional to replace the parts of the tankless heater.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

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5. Manual Guide

There’s nothing much in the manual guide provided with the AO Smith heater. The information provided is very crisp and contains just data about the parts. However, for the Rheem heaters, the guide book covers everything.

You can get detailed information about the parts and the valves. So when you need to replace these parts, it becomes easier for a Rheem water heater.

Rheem 18kW 240V Tankless Electric Water Heater, Gray

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

$445.00

Buy on Amazon

6. Pricing

You already know tank water heaters are less costly than tankless water heaters. It is so because of the implementation of the newest technology in the tankless water heater.

If you talk about Rheem vs AO Smith water heaters from a price point of view, you would see AO Smith water heaters are comparatively cheaper yet contain excellent quality.

AO Smith tank top water heaters are more reasonably priced than their tankless water heaters. You’ll find Rheem tankless water heaters with nearly the same specifications a bit pricier.

Conclusion

After a series of differences between the two brands, it would be ideal to say that they are quite similar to each other. However, if you just go in for an in-depth review, Rheem slides past AO Smith because of minute differences. So my vote will go for the Rheem tankless and electric systems.

But if you’re looking for a gas-based model, you can even put your hands on the AO Smith Gas water heater and enjoy your time. So, this was our take on Rheem VS AO Smith Water Heaters.

Do let us know what your favorite pick is down below in the comments section. Also, mention to us which product are you using and whether you are satisfied with it or not.

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Having a proper heater in your home is always an advantage. Such was for me when I tried to use the EcoSmart hot water heaters available. I’ll be honest, ever since I have tried out an EcoSmart water heater as my friend suggested, I was much obsessed with the brand.

Being a popular brand from all over the world, it is obvious that EcoSmart has numerous products available on the market today. So choosing the best one out of them is always a difficult task in hand.

But after coming up with hours of research and going through all the products, I have come up with a list of the Top 9 EcoSmart Tankless Water Heater Reviews available in the market today. To know more about the buying guide and the products, you can follow this review more.

If you are still confused and do not know which one to choose from the top 9 models available, don’t worry. Yes! I have compiled a buying guide of factors to consider before buying an Eco tankless water heater. Going through these factors will help you make a good decision.

1. Purpose

First thing first, you need to decide how many showers and sinks you will be running. Getting the purpose clear is the most important factor before purchasing a tankless water heater. If you have a bigger house, I suggest you opt for the bigger models. And in case, if you stay in a smaller one, I would suggest you choose the EcoSmart ECO 11 Tankless Water Heater.  And if you are thinking of using the heater in your office to run a sink, I would suggest you choose EcoSmart POU 6 Tankless Water Heater as they are small enough to fit your office sink.

2. Water Flow Rate

A major factor that you should look in a tankless water heater before you buy is the water flow rate. Knowing the water flow rate will help you understand whether it will satisfy your needs or not. Moreover, the higher the flow rate is the more sinks and showers you can run on it.

As per my knowledge, I think we normally need a minimum of 2 GPM for a shower and 1 GPM for the sink. In the ECO range, you will find several flow rates starting from 1.5 gallons per minute to 6 gallons per minute.

3. Temperature Rise

The rise in temperature depends on the water’s inlet temperature and can affect the device’s GPM. For example, an Eco 8 can give you 1.5 GPM water to 105 degrees F from 67 degrees F. But in case, the temperature of the inlet is colder, the graph of GPM will go down drastically.

4. Temperature Control

The Eco water heaters come with digital temperature control that allows you to set the temperature as per your needs. But, in the POU models, the flow of the temperature is controlled as it depends on the flow rate. If you have bigger homes, you may want controlled temperatures and I suggest you opt for any Eco model.

5. Location

Another factor that usually a consumer must look at while buying a tankless water heater is the location. Yes! I suggest you consider your location where you want to place the product since the inlet temperature depends highly on the location.

Usually, models that can run 4 sinks and a shower in hot temperature can run only 1 shower and 1 sink in cold temperature. Thus, I would suggest you buy the higher model or you can install individual POU heaters.

6. Energy Rating And Efficiency

Now that you have a plan to buy a tankless water heater, chances are that you want to save on energy. EcoSmart water heaters come in a wide range of energy ratings starting from 8 kW to 36 kW.

But, I would suggest you opt for a model that has self-modulating technology. It delivers only the required amount of energy to increase efficiency to 0.9. As a result, it saves energy and cut back on the electricity bills. 

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

Now after reading the factors and go in through the products, you might wonder why to buy an EcoSmart water heater only and why not any regular one. Well! Let me tell you the benefits then:

1. Space Saving

The tankless water heaters mean no tanks at all and thus, it allows you to install it anywhere you want. Even the largest model of EcoSmart water heater has a dimension of only 17 x 19 x 3.8 inches. In fact, the POU models are way smaller than the rest. As a result, you can fit them under the sinks.

2. Continuous Water Supply

Another distinct benefit of having a tankless water heater is that it gives you a continuous water supply. There is no requirement to wait for the water to get heated and nor you have to look out for when all the hot water runs out. Having this will let you get hot water whenever you require resulting in 99.98% thermal efficiency.

3. Saves Energy

All of these water heaters are usually tankless and thus the process of heating the water takes place when the water passes through it. On the other hand, the heater with a tank requires much more energy to heat the water.

Moreover, I found that most of these eco series come with self-modulating technology to adjust the power as per your needs. This further saves around 50% of the total cost.

4. Warranty

I found that almost all the EcoSmart water heaters have 12 years of warranty on the heater exchanger. But the lifetime warranty on heating elements, electric water heaters in the Eco series attracts me the most.

On the other hand, I found that you will get a year warranty in the POU series. Eco and gas models come with 5 years of warranty in the general parts and 1-year labour warranty.

5. Safe And Reliable

When you think of buying a water heater, one thing that should come to your mind before investing is reliability. Well! Let me tell you that all the EcoSmart hot water heaters are great at saving energy. And to my amazement, some of the best heaters further reduce the footprint of carbon.

This is because of no combustion products on gas models are found. They are smaller than the usual tank heater as a result when they break, minimum waste goes into the landfills. Moreover, most of the components are replaceable.

The tankless water heaters usually last longer than the ones with the tank, around 20 years. And they come with a lifetime warranty.

But the best thing according to me is that there is no headache of tank leakage, corrosion or rupture, no anode rod issues, and neither any rotten egg smell. Thus, you can go for any product mentioned above as all are safe and reliable.

6. Customer Service

I was researching Eco water heaters and found that most of the consumers report getting amazing customer care support. And when I got my hands on them, I found they were telling the truth. Although, I have rarely faced issues with the products, whenever I had, the customer care people were always ready to solve my queries.

7. Installation

Usually, it is easy to install an electric tankless water heater and one can do it on their own. However, I would suggest you get the help of an expert to maintain the EcoSmart warranty.

So you will not have any headache in case the installation is not done properly or if any case of manufacturing defects occur, you have the warranty to show the company.

However, the process of tankless water heater installation by the expert is quite fast and it will assure you that your heater is set up correctly.

1. EcoSmart ECO 18 Electric Tankless Water Heater

While reviewing the product, I found that the EcoSmart ECO 18 Tankless Water Heater has a highly durable interior. The internal components are properly coated which gives long life to the heater.

Apart from this, I found that the product has a simple installation and is easy to use. The controls are smooth and it operates easily. So even if you have minimum knowledge, you will be able to run the product.

The one thing that I liked the most about the product is the instant heating technology. It only heats when the heater senses a flow. So you will end up saving 60% of the electricity bills.

Moreover, the product includes digital temperature control. So you can adjust the thermostat with a 1-degree change in the temperature as per your needs.

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

2. EcoSmart ECO 27 Electric Tankless Water Heater

The EcoSmart ECO 27 Tankless Water Heater includes an activation flow of 0.3 GPM. This allows the heater to instantly produce hot water right from the moment it is turned on.

The one thing that I liked about the product is the presence of copper and stainless components. This is an effective design by the manufacturer to provide the long durability of the product.

Apart from this, I found that the EcoSmart 27 Electric Tankless Water Heater has a decent flow rate. It only heats up when the product senses water flow. Since there is no time delay, you can expect 50% energy savings.

Furthermore, you can also get self-modulating technology with the product. This allows the heater to understand when the requirement of hot water is more. So it allows you to get proper hot water options to all the faucets.

Sale

EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5

• Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
• Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches
• Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
• EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
• Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

$349.99

Buy on Amazon

3. EcoSmart ECO 11 Electric Tankless Water Heater

The one thing that I liked the most about the product is the compact storage and great design. It is very small in size and saves up more space. So if your bathroom is not large, it can be a good buy.

Apart from this, the EcoSmart ECO 11 Tankless Water Heater includes a self-modulating technology. Because of this technology, it can save up the electricity bills and provide you savings.

Furthermore, the product includes a limited lifetime warranty. So you can always expect to get good components with the ECO 11 EcoSmart Electric Tankless Water Heater. Considering the budget, it seemed fair.

But the one thing that impressed me the most is the wall-mounted design. Since it is only 6.5 pounds in weight, it became easier to lift the product and install it.

Sale

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

• Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A.Special Features: ‎Energy Efficient
• Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
• Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
• EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

$189.99

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4. EcoSmart ECO 36 Electric Tankless Water Heater

While reviewing the product, the one thing that I liked the most about the EcoSmart ECO 36 Tankless Water Heater is the option of digital output temperature. So I could easily adjust the thermostat.

Apart from this, I found that the product has a compact size of 17 x 19 x 3.8 inches. Though it is slightly heavier than others, it is never a problem to install the product.

The one thing I liked the most about the product is the easy pipe fittings. All the installation requirements are of standard size. So it took me just 10 minutes to complete the installation.

Furthermore, the EcoSmart ECO 36 Electric Tankless Water Heater includes a 99.8% energy efficiency rating. So even if you run the product for long hours, it will save up electricity costs.

Sale

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White

• Sleek and compact design with digital output temperature display
• ECOSMART tankless water heaters are 99.8-percent energy efficient
• Manufactured in United States
• Pipe Fittings:3/4 inch NPT
• Required Breaker:4 x 40 A

$697.47

Buy on Amazon

5. EcoSmart 8 KW Electric Tankless Water Heater

While reviewing the product, I found that the EcoSmart 8 KW Tankless Water Heater comes with a highly durable product. Most of the interior components are made up of stainless steel and copper.

The one thing that attracted me the most about the EcoSmart 8 KW Electric Tankless Water Heater is the easy to use option. Because of this, I could easily adjust the thermostat and check the digital display.

Apart from this, the most impressive feature of the product is the on-demand hot water service. Though it includes a 3-second time delay for safety, it can provide limitless hot water.

The EcoSmart 8 KW Tankless Water Heater has a decent activation flow rate of 0.3 GPM. However, the max flow rate is around 1.5 GPM providing you water for multiple appliances.

Sale

EcoSmart ECO 8 Tankless Water Heater, Electric, 8-kW - Quantity 1, 12 x 8 x 4

• The product is highly durable
• The product is easy to use
• Manufactured in China

$219.00

Buy on Amazon

6. EcoSmart POU 3.5 Electric Tankless Water Heater

The EcoSmart POU 3.5 Tankless Water Heater comes with a reliable rate of flow. The product features 0.5 GPM for one sink. So if you gave smaller requirements, this can be a great buy.

While reviewing, I found that the best part of using the EcoSmart POU 3.5 Electric Tankless Water Heater was the installation. The product weighs only 4 pounds which is easy to carry. It also has a compact size.

The one thing that attracted me the most about the product is the digital display option. There is no remote, but you can easily reach out to the adjustable thermostat. It is easy to adjust and alter the settings.

Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch

• Can provide hot water for one sink at 0.5 GPM in warmer climates
• Requires 1 x 30 amp breaker and 10 AWG wire
• For one sink at 0.5 GPM in colder climates the POU 6 is recommended
• Amperage Draw 29 amp. kW - 3.5 kW
• Connection Fittings 1/2" NPT

$184.95

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7. EcoSmart POU 6 Electric Tankless Water Heater

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The one thing that I liked the most about the EcoSmart POU 6 Tankless Water Heater is the 0.5GPM aerator. I found that the product can deliver more than 1 GPM of hot water when the demand is more.

Apart from this, I found that the Eco POU 6 Tankless Hot Water Heater comes with a compact size. The dimensions are around 5 x 12.8 x 8 inches that allowed me to install it almost anywhere.

But the most interesting part of the POU 6 EcoSmart Electric Tankless Water Heater is the complete lightweight and silent operation. I could easily mount the product and because of the silent operation, the workflow always remained smooth.

Ecosmart POU 6 Point of Use Electric Tankless Water Heater, 6 KW, 1/20, 1/40, 1/95, White

• Designed for single point-of-use applications such as hand sinks in RVs, boats, restaurants, hotels, and medical offices requiring low flow rates not exceeding 1 GPM

$195.62

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8. EcoSmart Eco 8 Green Energy Tankless Water Heater

The EcoSmart Eco 8 Green Energy Tankless Water Heater includes a completely new technology that saves up the energy. Because of the mechanism, it is almost 99% energy efficient and also safe to use.

The product includes a self-modulating technology. So it only starts heating when the product senses a flow. Because of this, the EcoSmart Eco 8 Green Energy Tankless Hot Water Heater can save 60% of the energy.

Apart from this, I found that the EcoSmart Eco 8 Green Energy Tankless Water Heater is easy to install. Since it has no tank, the product weighs only 4.75 pounds and the dimensions are 9.8 x 6.5 x 14 inches.

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9. EcoSmart POU 4T Electric Tankless Water Heater

The EcoSmart POU 4T Tankless Water Heater has a compact body and a decent design. Moreover, the product is light in weight. So when I tried to install the product, it took me only 10 minutes.

While reviewing the product, I found that the EcoSmart POU 4T Electric Tankless Water Heater has a 0.6 GPM. Considering a point-of-use model, it seemed to be coming up with a decent rate of flow.

The one thing that I liked the most about the product is low energy consumption. It only heats the water when there is a flow. So this allowed saving up 60% of the electricity bills. For short usage, it is a great purchase.

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

While creating the review, a lot of products came to my mind and it was always difficult to choose the best one. However, certain features allow a product to stay at the top and become effective.

I have featured 3 heaters below and a short comparison for you to choose the best available product. You can also choose the other products available on the list if you want. 

The EcoSmart ECO 18 Tankless Water Heater includes a 1.5 GPM that seems to be a great fit for any home-usage. I found this product to be slightly lighter in weight and around 14 pounds. So installing this heater was the easiest part of all. In fact, I could always use the product for 2-3 showers at the same time and also to other appliances. So for my uses, the EcoSmart 18 Tankless Water Heater seems to be a nice buy and it gets the job done.

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

Another product that I liked the most is the EcoSmart ECO 27 Tankless Water Heater. The product comes with a decent flow rate so that you may not have to wait long. Because of the instant delivery, the hot water starts to flow out of the heater without any delay. Comparing the weight, the product has 11 pounds. So it is never a heavy to lift. But the one thing that I liked about the product is the slim dimensions which make it easy to install.

Sale

EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5

• Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
• Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches
• Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
• EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
• Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

$349.99

Buy on Amazon

The EcoSmart ECO 36 Tankless Water Heater is another product that has attracted me the most. While reviewing, I found that the product has a decent 0.3 GOPM activation flow rate. Because of this, it was quite efficient for me to use the product at any regular place. Moreover, it has a higher weight as compared to other products. The weight of the EcoSmart ECO 36 Tankless Water Heater is around 18.35 pounds but the dimensions are slim and never eat up bigger space.

Sale

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White

• Sleek and compact design with digital output temperature display
• ECOSMART tankless water heaters are 99.8-percent energy efficient
• Manufactured in United States
• Pipe Fittings:3/4 inch NPT
• Required Breaker:4 x 40 A

$697.47

Buy on Amazon

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

So after going through the entire buying guide and the in-depth Ecosmart tankless water heater reviews, I believe that it will be much easier for you to choose. EcoSmart is a renowned brand and most of their products are great for your regular uses. Still, if you are having problems while choosing, you can also choose other products available from Amazon.

If you have purchased any one of the players mentioned above, you can always drop your experience in the comments below. You can always drop your comments below about the experience that you have regarding the heaters mentioned above.

EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

• Voltage 240
• Phase Single
• KW 18 kW
• HZ 50/60
• Temperature Control Digital

$400.00

Buy on Amazon

One company that has been leading the water heater market since years is A.O. Smith. Known for delivering high-grade products engineered using best technologies and catering to the requirements of modern consumers, the water heaters by A.O. Smith always outperform their competitors.

A.O. Smith offers a comprehensive range of water heaters including electric, tankless, gas, and solar. So, no matter what your personal preference is, you will always find a water heater with ease.

In this post, we have listed AO Smith Water Heater Reviews for A.O. Smith’s top water heater models along with all important details that you want to know about this company and its product range.

The A.O. Smith water heaters excel others in the market because of various factors. The prominent reasons to why you must choose A.O. Smith hot water heaters are:

• The company engineers its water heaters using industrial-grade components and top-quality materials.
• All water heaters use glass-lined technology. The company is the first one to patent this technology in 2004 and has named as a Blue Diamond glass coating. Because of this technology, the A.O. Smith water heaters hold twice resistance to corrosion and rust than traditional heating liners.
• Most of its water heaters are Energy Star-rated meaning they consume less energy, and hence, can help you reduce the heating bills to a great extent. If you want a product with excellent performance and high energy-efficiency, these water heaters can serve you in the best manner.
• The recently manufactured water heaters by A.O. Smith are equipped with the latest technology such as iCOMM app. It is an explicitly designed app for commercial water heaters, allowing the users to monitor their units remotely. It has served as an excellent solution to property managers.
• A.O. Smith proudly states that their propane and gas-powered water heaters are rated ultra-low or low NOx. It means that they emit very minimal amount of nitrous oxide, which helps in combating the greenhouse effect.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

A.O. Smith offers a wide range of water heaters.

1. Gas Water Heaters

A.O. Smith offers gas and propane heaters in a wide range. Their heaters are categorized into three Proline tiers.

Why they stand out?

The gas and propane water heaters by A.O. Smith are known for their unmatched efficiency and high-grade quality. All their gas water heaters are marked with LEED ratings and are energy start certified. All models in this range are proven to deliver ultra-low or low NOx emissions and come with 4 distinct options.

Different Lines of A.O. Smith Gas Water Heaters

• Polaris

The Polaris gas water heaters by A.O. Smith are ideal for those who want uninterrupted supply of hot water. This range comes with high energy efficiency with great recovery rate and ultra- low noise operation.

• ProLine Master and ProLine

The water heaters featured in this range are designed for permanent and mobile use within residents. They come with high recovery and 80% energy efficiency ratings.

Some of the models deliver even higher efficiency rating than this. All models in this range are certified for exceptional performance and are categorized under an exclusive category, the ProLine XE.

• Signature

This line of A.O. Smith water heater consists of numerous Signature Premier and Signature Select water heaters designed exclusively for residential use. Though they do not hold the highest energy efficiency, but offer the best value for money.

• Vertex

The entire line of Vertex gas water heater is an Energy Star product featuring high thermal efficiency and exceptional recovery rates.

2. Electric Water Heaters

The electric water heaters by A.O. Smith are powered electrically. The best thing about these heaters is that they are engineered using environment-friendly components and comes with LEED certification. They draw a specific power from the electrical outlet and require smaller space for installation.

Why they stand out?

In comparison to other models, the electric water heaters deliver higher efficiency. They offer small point-of-use and can fit well into compact spaces.

Different Lines of A.O. Smith Electric Water Heaters

• ProLine and ProLine Master

This is the lowest Tier of electric water heater, which is almost the same as the ProLine range of gas water heaters. The models in this range deliver above-average efficiency. They are available in various sizes with the smallest tanks holding capability to hold a few gallons of water.

• ProLine XE

The water heaters in this range feature ultra-high efficiency and digital display. They come in mid-size tanks and are ideal for single-family or apartments.

• Signature

The water heater models in the Signature series is sold at Lowes as of 2017. These water heaters are great for those who want great durability and high-efficiency from their product.

• Voltex

These water heaters are quite similar to the Vertex line of gas water heaters. They are compliant with energy start and come in an appealing hybrid design. The unique hybrid design doubles the dehumidifier, extracting excess moisture from the air to reduce utility bills and water requirements.

3. Tankless Water Heaters

A.O. Smith offers a wide range of tankless water heaters, which are available for propane and gas usage. These models feature ultra-low or low NOx thereby leading to enhanced environmental safety.

Why they stand out?

Tankless water heaters are in high demand as they need very less space for installation. They offer hot water supply on-demand and come with remote control operation and digital displays.

Different Lines of A.O. Smith Tankless Water Heaters

• Propane and Gas

Most of the models in this line feature non-hybrid technology and come with LEED and Energy-star certifications. They are rated as ultra-low NOx and are greatly efficient.

• Propane / Hybrid

These water heaters are fueled by propane or gas. These are efficient models with an extensive range of domestic systems. They offer high levels of efficiency and are non-condensing.

4. Solar Water Heaters

The solar water heaters by A.O. Smith are available under the line Cirrex Solar system. These water heaters are highly efficient and excellent for the environment.

Why they stand out?

 These water heaters come with OG-300 certification ensuring they are eligible federal rebates and breaks in various states. Moreover, they reduce heating expenses by 70%, and hence, are perfect for those who have a tight budget.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

Buying A.O. Smith water heaters is considered a wise choice because all of its products offer multiple benefits such as:

• The company is dedicated to manufacturing eco-friendly units.
• Most of its water heaters are energy efficient and need lesser resources to heat water. Even, their manufacturing plant in China recycles 80% of water used during the development process.
• The products developed by the company are of high-quality, and hence, last longer.
• These water heaters hold high resistance to corrosion and rust.
• These models do not clog up sediments or dust, and hence, provide maximum hot water output.
• The newly introduced iCOMM app can be used to gain control over your water heater even when you are at a distance.
• Buying A.O. Smith hot water heaters can save you a lot of energy and time! These water heaters utilize 1/4th power of the heating system and make sure you gain consistent hot water supply at low prices.
• With numerous safety and advanced mechanisms introduced, these water heaters are able to serve numerous purposes at once.
• These water heaters are highly affordable and do not involve any complex installation.
• Since, these water heaters are integrated with the best-quality components and elements, so there is reduced down ProMaxtime of repair and maintenance. 
• The extensive product range of gas, tankless, electric, and solar water heaters lets you make a preferred choice.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

A water heater is a long-term investment. You must therefore select a model that precisely meet your requirements and can serve you longer. Some of the important factors to take into account are:

1. Check Space Available with You

Water heaters come in different dimensions. If you want to buy a big water heater, you must have enough space for its installation.

There are a few water heaters that require proper surrounding air. You must check proper cubic square footage requirements before buying a heater.

2. Energy-Efficiency

Pick a fuel source, which is more affordable. For example, natural or propane gas water heaters involve less operational cost in comparison to electric water heaters. However, they may not offer quick heating mechanism.

Tankless or solar water heaters are other energy-efficient options available. So, pick a fuel source as per your choice and a model as per energy efficiency ratings.

3. Consider Electrical Fittings

While electric water heaters need electricity for running, the gas water heaters need standard 115-volt for ignition system. Electric tankless water heaters require 240-volt service and a line dedicated to sufficiently handle the present draw.

4. Consider Venting Options

Gas water heaters are vented outside the house. Also, when you replace gas water heater with a new one, you have to alter the place from last installation. Hence, check the best venting option. For this, you can hire a professional plumber that can perform venting quickly and safely.

5. Understanding Hybrid Water Heaters

Such water heaters gather heat from air and then use it to heat water. For this reason, they use 60% less energy than traditional water heaters. Though they are quite expensive initially, the associated energy cost can save you a lot.

But hybrid water heaters are ideal for colder places or regions with temperature range from 40 to 90 Degrees Fahrenheit. For installation such units, you want a clearance of around 7 feet to the ceiling from floor. This will accommodate your heat pump.

6. Hot Water Storage Tank

It is essential that your water heater serves your entire family. For this, you have to pick one that has an appropriate hot water storage tank capacity. A 50-gallon hot water supplies enough hot water needed for a family of 4 members. In case you wish to pick tankless water heater, take into account the family needs as well as climate.

7. First Hour Rating

It is a rating based on hot water stored in the tank compared to incoming cold water, which can be heated in one hour. A heater with higher first hour rating results in more hot water supply during peak use.

8. High Recovery Rate

This rate is related to how fast the water heater can generate hot water once the initial supply has reduced. A low rate of recovery means who have to wait longer for the heater to heat up the water.

9. Low NOx

Every water heater generates nitrogen oxide while heating the water. Water heaters with low or ultra-low NOx are the best as they are proven to release less amount of nitrogen oxide. This is a good thing for your health and the environment.

10. Flow Rate

It refers to the number of gallons of hot water in one minute. Heaters with higher flow rate are beneficial.

11. Warranty

You must select a water heater with a minimum 6-year warranty. With A.O. Smith hot water heaters, the warranty is available for up to 10 to 15 years for their parts.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

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It is very easy to install A.O. Smith water heater. Just make sure you always hire a professional to get the job done. In case you don’t have easy access, you can simply visit the company’s website and register your purchase and model.

A professional from the company will soon visit you and offer you with the perfect installation. Also, if you have any doubts regarding the product, you can ask the professional and gain absolute peace of mind.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

All water heaters engineered by A.O. Smith are known for holding a strong market reputation in terms of durability, build, and quality of components. They usually do not show the standard problems occurring in other water heaters.

Most of their units last longer without leading to any problem for at least 10 years. By regularly maintaining your water heater and availing of professional service in time of need, you can extend the product lifespan to a great extent.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

The price of buying A.O. Smith water heater can vary drastically based on the type of model you choose and the installation technique. You must always get your water heater installed by a professional to avail of proper plumbing and electrical units.

The cost of installation may also vary depending on the kind of water heater you purchase and the intricacy of venting needed. Usually, electric water heaters are cheap to install in comparison to water heaters needing tapping or venting into the gas source.

We suggest asking professional assistance while selecting the right heater for your house. Professionals can also offer you with a precise installation bid and absolute peace of mind by doing the job in the right manner.

Most importantly, take into consideration the lifetime cost associated with a water heater. A.O. Smith water heaters may involve higher upfront price but reduced utility bills and longer service life eventually makes you a winner.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

Just like other manufacturers in this industry, A.O. Smith offers limited warranty on its product range, depending on the model and style. For example, a 15-year warranty is offered for the heat exchanger of a gas tankless water heater, while the warranty for similar product in an electric water heater is 5 years.

The electric and gas tank-style water heaters come with 6 to 10 years of tank coverage based on the model. It is best to check the specific warranty coverage for your preferred model on the company’s website.

A.O. Smith has earned success and reputation over the years by delivering reliable and efficient services by always keeping their customers at prime importance.

The company was founded in 1874 by Charles Jeremiah Smith as a hardware solution shop managed by a single-person. The small business expanded fast including three sons and was renowned for manufacturing high-quality metal components used in baby carriages.

Arthur Oliver Smith was the third son to join the company, who took this venture to sky-scrapping heights by developing a lightweight steel frame for vehicles. This grabbed attention of leading automobile companies like Cadillac and Ford.

This innovation by Arthur was a marvel to the industry and soon the first automated frame production line was introduced in 1921 by son of Arthur, Lloyd Raymond.

Then in 1936, A.O. Smith engineers introduced a unique method for incorporating glass linings to residential water heaters. One after the other, there were advancements in water heater design, which led to company’s expansion in China, Europe, and Canada.

The automotive branch was sold by the company in 1997 along with its electric motor branch in 20111. As a result, the company was established as a major water treatment and heater company, becoming a global pioneer.

The glorious success of the company is 150 years old, which still exists!

To make the buying process simpler for you, here we list the 10 best A.O. Smith water heaters.

 Best Gas Water Heaters

1. A.O. Smith Signature Premier 50-Gallon Short 6-Year Limited Natural Gas Water Heater

This gas water heater by A.O. Smith is an excellent product with high energy efficiency and certified star rating. It offers through the roof and wall venting. The vent pipe comes in ABS, CPVC, or PVC form with a vent diameter of 2, 3, or 4 inches.

It is equipped with self-diagnostic gas control mechanism and LED status indicator, which makes it easy to monitor the current operational status of the heater.

2. A.O. Smith GCR-50 ProMax Plus High-Efficiency Gas Water Heater, 50 Gallons

This is a premium model designed with the best-quality components and ensures gas fuel is utilized in the most efficient manner. It comes with high recovery level and is a perfect solution for bigger families with continuous demand of hot water supply.

The compact and sleek design offers easy installation at any space as it can vent up to 40 feet. The model is equipped with two-pipe combustion systems that draw clean air eliminating issues related with indoor ventilation.

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

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3. A.O. Smith Signature 40-Gallon Short 6-Year Limited Natural Gas Water Heater

With self-diagnostic gas control mechanism and LED display indicator, this A.O. Smith gas water heater will never disappoint you in terms of efficiency and performance. It comes with advanced safety technology that alleviates risks of accidental fires or short circuits. While the push button ignition system offers quick start, the pressure relief valve and factory induced temperature serves safe operation.

Best Electric Water Heaters

1. A.O. Smith Signature Premier 50-Gallon Short 12-Year Limited 5500-Watt Double Element Electric Water Heater

This electric water heater ideally optimizes hot water output with 3-4 members. It is equipped with two 5,500 watts stainless steel heating elements and an electronic interface offering you the ease to operate this unit in three different modes.

With self-diagnostic controls, making selections is easy and quick. The unique Energy Smart Mode ensures there is no heat loss when the unit is at standby.

The water tank is shielded with fused ceramic imparting resistance to corrosion, and hence, delivering longer service life.

2. A.O. Smith PXNS-50 Conservationist Short Electric Water Heater, 50 Gallon

This line of electric water heater is an energy-efficient model that will always impress you with its superior performance and exceptional build. It comes with Phoenix heating elements on lower and upper ends, which lasts three times longer than usual copper elements.

The Blue Diamond glass coating imparts great resistance to corrosion to the entire body. It comes with unique Dynaclean II technology, which is specially designed to generate turbulence in the tank.

3. A.O. Smith Signature 50-Gallon Tall 6-Year Limited 4500-Watt Double Element Electric Water Heater

The Signature Select electric water heater is a wonderful choice that maximizes hot eater output. It is designed using environment – friendly insulation and reduces heat loss during standby. With factory-installed temperature and a pressure relief valve, it offers smooth operation.

The tamper-proof nylon drain valve prevents undesirable water discharge and offers a way to drain water from heater. The water tank is surrounded by a strong layer of non-CFC polyurethane foam that traps heat within and saves energy.

Best Tankless Water Heaters

1. A.O. Smith ATI-540H-N Condensing Residential/Light Commercial Tankless Heater

This A.O. Smith water heater is an excellent product fit for light commercial and residential use. With a high indoor capacity of 13,000 BTU, it inputs excellent power and ensures that you receive consistently hot water supply. The water heater is a tankless design that means it requires less space for storage. At the same time it frees you from worries related to tank leaks.

Sale

AO Smith ATI-540H-N Condensing Residential/Light Commercial Tankless Heater

• Never run out of water again with a steady 10 GPM flow rate
• Electric ignition ensures you never have to mess with a pilot light again
• This product is Energy Star certified with a Uniform Energy Factor of 0.95
• Tankless design allows for wall-mount installation, leaving more space available for you to use
• Features a built-in temperature controller and factory installed power cord

$1,553.38

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2. AO Smith ATI-340H-N 8 GPM Residential/Commercial Condensing Natural Gas Indoor Tankless Water Heater with 180000 Maximum BTU Input

Using this tankless water heater by A.O. Smith will ensure you never run out of hot water. It operates at a steady pace of 8 GPM. The compact design allows convenient mounting to the wall, offering you a low-profile installation.

It is equipped with factory-grade power cord and temperature controller which are compatible with category IV or III power direct venting in 4 inches and 3 inches. It is one of the finest tankless water heaters available with commercial-grade components.

8 GPM 180,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater with Ultra-Low NOx

• Never run out of water again with a steady 8 GPM flow rate
• Electric ignition ensures you never have to mess with a pilot light again
• This product is Energy Star certified with a Uniform Energy Factor of 0.95
• Tankless design allows for wall-mount installation, leaving more space available for you to use
• Features a built-in temperature controller and factory installed power cord

$1,387.43

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3. AO Smith ATI-310N Non-Condensing Residential/Light Commercial Tankless Heater

Rendering a BTU of 11,000 and a maximum GPM of 8.0, this A.O. Smith water heater is a perfect solution for light commercial and non-condensing residential requirements.

This tankless water heater is a sleek and clean design that comes with exhaust mechanism to prevent accidental hazards due to overheat. It is a unique design with built-in freeze protection and warms water at a constant temperature.

AO Smith ATI-310-N Non-Condensing Residential/Light Commercial Tankless Heater

• Built in freeze protection
• Manual reset hi limit (Set at 194-Degree F)
• Overheat cutoff fuse
• Inlet and outlet thermistors for constant temperature monitoring

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Best Solar Water Heater

10. AO Smith SUN-120 Residential Solar Water Heater

The SUN-120 Solar Booster water heater is from the line of solar water heaters by A.O. Smith. Designed exclusively for residential use and light commercial applications it utilizes solar energy for heating water.

As a result, you will never have to worry about your utility bills. It is among a few solar water heaters equipped with advanced features such as Dynaclean diffuser dip tube, sop and side connections, and PermaGlas Glass Tank Coating.

AO Smith SUN-120 Residential Solar Water Heater

• Side and top Connections for open loop systems or closed loop systems using an external heat exchanger
• Dynaclean diffuser dip tube helps reduce lime
• Long-Lasting, Low-Watt-Density Heating Element
• PermaGlas Glass Tank Coating

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A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

A.O. Smith GCR-50 ProMax Plus High Efficiency Gas Water Heater, 50 gal

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Buy on Amazon

A.O. Smith holds a history of leading the market with its innovative technology and well-build products. Though their products are not rated high on websites like Amazon, you can always browse the company’s site to gain complete detail and professional advice.

We consider A.O. Smith as one of the leading companies for water heater as they not only offer a wide product range, but also ensure their products are of the highest quality and all of them are backed with long-term warranty and rich customer support. We hope that our detailed article on AO Smith Water Heater Reviews might have helped you in choosing the best one for yourself.

When it comes to a power-packed performance, the Takagi T-KJr2-IN-NG is always a reliable option. Not because it can duly satisfy the needs, but it has specific features that can make you go gaga over the product.

However, before you buy the product, you must know everything about it. From the features to the performance and even the difficulties that you may face- all are important.

So before you go on to purchase the Takagi T-KJr2-IN-NG, go through this entire Takagi Tankless Water Heater Review to know all about the product and what you can do with this.

Perfect for high altitude places

The Takagi T-KJr2-IN-NG works perfectly when you are living at a high altitude. This may even work great if you live in colder places. So if you have enough water pressure at the locality, it will always provide a good flow.

I have asked some of my known persons about the performance on the hills and it seemed to be very reliable. Needless to say, that the product has efficiently worked at an altitude of 7500 feet.

Remote control

Having such a feature can be great for any gas-based heaters. Most of the regular heaters do have an adjustable thermostat. But to change the settings of the heat temperature, you need to get up to the heater and then change it accordingly.

Luckily, the Takagi T-KJr2-IN-NG comes with remote control. So when I wanted to change the temperature settings, it was just about a few clicks away from the perfect settings. This feature saves a lot of time and effort.

Cost-saving

When you use any tank based heater, it takes time to heat the entire water stored inside. Once it is completely done, the heater then flows out the water. But with the Takagi T-KJr2-IN-N, it is not the same.

Here, the heater runs the burner directly just after you turn it on. With a reliable and stable temperature, the product can perform much efficiently. It can cut on the costs to 1/3 times than that of any regular tank-based water heaters.

Space

The Takagi T-KJr2-IN-NG includes a space-saving technology for the manufacturer. It is specifically designed to be more compact and accurate. Thus, there is enough space always available when you want to install the heater or to mount it.

The accurate dimensions of this Takagi Water Heater are around 6.7 x 13.8 x 20.3 inches. Comparing the other gas-based heaters, it seems to be much compact and reliable to use. So it just eats up the lowest space making the heater look impressive.

High capacity

Another impressive feature is the high capacity. The product is always reliable to use even if you have a large family or you have connected it to multiple faucets. The T-KJr2-IN-NG includes a flow rate of 6.6 GPM at 35 degrees Fahrenheit temperature rise.

However, even if you require a higher temperature up to 70 degrees, the heater still provides a 3.3 GPM flow. This means that this tankless water heater is quite reliable to use with 3 faucets at the same time. You will never run out of water. 

Good safety features

The one thing that I liked the most about this indoor tankless water heater is the safety features of the product. The manufacturer has always made it clear that the product will include a decent storage tank. It comes with Grade III stainless steel.

Apart from this, there are other safety features including the freeze, overheat, troubleshooting codes and also the surge protection. All these safety measurements are very necessary when you live in high altitudes or any contaminated locality.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

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The Takagi T-KJr2-IN-NG is a great product for residential purposes. Because of the safety features, it becomes long-lasting to work with. Thus, the manufacturer provides a limited warranty of 10 years on the heat exchanger. This is by far the highest amongst most of the gas-based heaters.

Apart from this, you can also get a warranty of 5 years for all the internal components of the water. However, you must keep in mind about using the water heater according to its guidelines. This is mainly because if the water is hard and full of contaminants, it will damage the internal components.

In such a case, the warranty will not be void. Keeping the heater in a safe place is a must if you want to get complete warranty satisfaction. If you wish to claim the warranty, you need to contact the manufacturer. You can do this easily by either contacting 1-877-737-2840 or you can visit the official website for more details.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

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When it comes to the installation, the T-KJr2-IN-NG is one of the simplest on the line. This is mainly because the product is small and it is light in weight. So it is always easier to handle the heater.

However, the manufacturer insists that the installation must be done with the help of a professional. This is mainly because the installation location is very important. You cannot place the heater in just a pit or an attic. Make sure that it is properly mounted.

Moreover, the Takagi provides an instruction guide along with the heater. This is fairly efficient for you to carefully go through the entire guide to avoid any type of damages.

If you already have a heater and you are done with the venting and electrical connections, you may have to change the process. The installation is easy but you must be careful to avoid damaging the product for warranty purposes.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

Before buying any product, going through the consumer comments are very important. However, when I went down this section to research from all the forums, I found it to be very relaxing. The Takagi T-KJr2-IN-NG comes with favorable reviews for the most part.

In fact, most of the customers are satisfied with the product. Since it is light and compact, most of the users have already mentioned that it became easy to install. Apart from this, there are also comments on the performance. 

The Takagi T-KJr2-IN-NG performs extremely well and there are no signs of slowing down even if you use with multiple faucets. Coming to the cost of the product, most of the users have been satisfied. Although it seems to be higher upfront, when you consider a 20-year long run, it can be very economical to run. 

However, there is just a handful of comments from some users about the performance not being up to the mark after a few months of installation. There may be several factors about such comments as they have not specified the climatic conditions and the details of their installation. So I will recommend you to get it installed by a professional.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

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The Takagi T-KJr2-IN-NG maintains a key configuration that makes the product perform well under any climatic conditions. When I compared the model to the other gas-based heaters available, I found that the technology used can easily save up to 40% of the energy.

This is mainly because the energy factor of the water heater lies between 0.81-0.83. Apart from this, the heater can operate with 1 Watt consumption for producing 0.82 gallons of water. 

While going through more, I found that it has a decent flow of heat. Even at the higher or lower temperatures, it can provide around 6.6 GPM. However, when I used multiple faucets with the product, I found that it works at 3.3 GPM for three faucets. So it can always work efficiently in any situation.

Coming to the power consumption, it runs stable at 120 Volts and it has a gas burner. So it will never consume much electricity while operating. Also, this Natural Gas water heater is capable of heating 140,000 BTU which is an added advantage to the product.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

If you are looking for a powerful heater that will have all the latest technology, the T-KJr2-IN-NG is the right choice for you. Though you may feel that it is slightly higher up on the costs while purchasing, it is still beneficial for you. The daily running costs are the lowest and it can provide you the run for a long time.

Moreover, the product has some unique features that make it easy to operate and to change. It gives a tough competition to most of the gas-based water heaters available in the market today. So considering the value, it always gets a five-star rating to purchase.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

Takagi is a pioneer when it comes to plumbing whole sellers and contractors. Over 60 years of operation worldwide, it has become one of the leaders in the industry. The company was established in 1952 keeping in mind the innovation to customer satisfaction.

So even if you need a hot water solution for any type of home or commercial requirements, you can always find it first from Takagi. Most of the haters that come from the manufacturer are around 95% energy efficient making the world a safer place to be.

When innovation comes to play, the company shares advanced technology like air-fuel ratio rod and other safety components in all the gas-based heaters.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

• 140,000 BTU
• Energy factor of 0.81-0.83
• 6.6 GPM max flow rate
• Inlet, outlet thermistor for constant temperature monitoring
• 4-Inch category III stainless steel

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

1. No Instant Hot Water

The Takagi T-KJr2-IN-NG does not provide any instant hot water with the product. In fact, it always takes up to 5-10 seconds to start the flow of hot water. This may be mainly because the pipe is frozen.

Solution

If you compare all the other water heaters, this problem is nothing new. It is not because the T-KJr2-IN-NG is slow. The natural flow of the heater is quite fast. The problem is mainly because there is water stored in the pipe and you are not using it for long.

So to get the hot water, the heater has to first throw out the water that is kept in the pipe and then start heating the freshwater. So you must wait for 10 seconds to allow the hot water pour out of the faucet.

2. The installation is a bit expensive

Takagi will void the warranty if there is any damage caused to the product while you are installing it. So paying for a professional from Takagi for installing the product will always be a bit expensive.

Solution

Hiring a professional for your job is always going to be expensive. So if you want to cut down the cists, you need to install the Takagi T-KJr2-IN-NG all by yourself. Keep in mind about the warranty and now you need to go through a detailed review of the installation guidelines provided.

If you are a bit confused, you can check some of your friends or family member’s home to know how the fittings are done. Research more about the uses of gas valves and how must they be turned on.

However, if you are not too confident about installing it, do not do it in a hurry and a random way. This is because improperly handling the product may cause accidents. This may even damage the product.

Once you are ready to install, keep in mind one thing that you need to remove any stored gas from the gas valve. This will reduce the chances of accidents.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

• 140,000 BTU. Voltage: AC 120V
• 6.6 GPM max flow rate. Water connection location- bottom
• 4-Inch category III stainless steel venting required
• Inlet, outlet thermistors for constant temperature monitoring
• Energy factor of 0.81-0.83

Buy on Amazon

If you live under extreme temperatures with cold nights, the Takagi T-KJr2-IN-NG can always be an impressive buy for you. Moreover, the product comes with a high capacity. So if you have a large family along with you it can always be a reliable buy.

Because of the high performance, I can suggest the Takagi T-KJr2-IN-NG be a good choice for the commercial uses. However, though you may face some minute challenges like installation, gas leakage, it is still a great product for you to choose from. You can always rely on the product.

When it comes to picking the right heater available for you, you must consider multiple facts. In the field of the tankless heaters, the Rheem is indeed a top brand. Similarly, the Rheem RTE 13 has all the bases covered that make the product a top choice for you.

But before you buy any electronic product for your home, the first thing that you need to consider is a complete review of the product. Without knowing all the details, it may become tough for anyone to pick up the right product available for you.

Knowing all about the product is thus important. However, if you are looking for more about the product, here is a complete review of the Rheem RTE 13 that you can follow.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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1. Rate of Flow

The Rheem RTE 13 comes with a decent speed of flow. Coming to the rate of flow technology, it seems to be smooth and quite fast. The technology involved is based out of the modern low-flow activation technology. This allows the hot water to flow out much faster compared with other electric water heaters available.

Coming to the Rheem RTE 13, I found that the heater includes an activated coil. This is around 0.4 GPM. Now when I compared all the other models available, I found that the heater works efficiently and quite better than most of the others available. So it efficiently works better than most others.

2. Rise of Temperature

Another important feature of the Rheem RTE 13 is the thermostat of the product. It can seamlessly rise to the optimum levels required. However, this mainly depends on the groundwater temperature that the heater is consuming.

So basically, the lower the ground temperature of the water is the rate of flow will be much lower. So it works highly when you have regular water temperature. The RTE 13 includes a regular temperature intake of 55 degrees and then produces an output of 105 degrees of water.

So it has a general water temperature rise of 50 degrees and because of this, the heater can approximately provide around 1.75 GPM with a regularity.

3. Durable

The one feature that always inspired me the most is all about the durability of the product. The RTE 13 includes decent interiors that can work well in any place. The most important thing is that all the components from the manufacturer are highly tested.

They come with quality materials that are great for a longer time. I tested the product with contaminated water for a long time. But I was surprised to see that the Rheem RTE-13 performed well. It has proper coating layers on the internal components that can prevent the heater from any type of corrosion.

4. Energy Factor

The energy factor of the product is another important part when it comes to the performance of the product. The energy factor depends on the conversion of heat and how much it is productive for your use. Most of the electric-based heaters come with lower efficiency than that of the gas-based heaters.

But when it comes to the energy factor, the Rheem RTE 13 always has a proper result. We found that the product has an energy efficiency of around 0.755 to 0.95 that works efficiently. Constantly, the water heater works around 0.82 that performs well as compared to others. You can always rely on the efficiency and low costs.

5. Technology

The Rheem RTE 13 comes with advanced technology to ensure that the flow of water is fast and effective. I found that the product comes with Rheem advanced technology when it comes to heating the water. This will get the proper rate of flow according to the requirements.

Apart from this, the power consumption is very low and it operates fast from 54 Ampere and it can always provide you with maximum results in the shortest period.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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Coming to the performance of the Rheem RTE-13, it is always impressive for their use. When it comes to regular uses, it is always reliable for everyone. Moreover, it includes modern technology that can always be effective.

Comparing it with the other models, I found that the RTE 13 can easily save up at least 25% of the energy when you run it for longer hours. 

The product has a decent size and it an always provide a fast flow of hot water. The best part that I liked about the product is the option of low energy consumption. This tankless water heater is highly energy-efficient and it can work with low pressure providing faster results.

While I tried to use the product, I found that it took only a few seconds to heat up and get started. So even if you connect multiple faucets with the product, it works fast.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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While coming to the warranty, the manufacturer always has a decent interaction policy. Overall, to check if the product is under warranty, you can go to the official website of the manufacturer and enter the serial number.

However, the body is well built and so are the internal components. The Rheem RTE 13 Warranty offers a 1-year warranty for the internal components. This is followed by a 10-year warranty on the heat exchanger. 

For any electric tankless heater, the offers by RTE-13 Warranty are quite impressive. However, there are certain criteria that you should be matched with to claim the warranty.

The water heater cannot be installed by any user and it must be done with the help of a licensed professional. Otherwise, the warranty will be null and void.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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When you are looking at any electrical heater, the important thing that you must consider is the value of the product. It is evident that once you buy a product, it must have proper value in return. Coming to the Rheem RTE 13, it seems to be a little expensive when you first compare the price with other natural gas heaters.

However, because of the energy consumption and the low power operation, it seems to be a great buy in the long run. The one thing that has impressed me the most is the ability to provide proper hot water flow to any shower or a dishwasher simultaneously. It can be very helpful if you have a small family along with the product.

Apart from this, the electric tankless water heater comes with a longer warranty. So you may not have to worry much about the product performance. Even if there is any problem from the manufacturer’s end, the response is always good and you will get proper support from the technician. So you must follow the instructions set up by the manufacturer while operating the unit.

However, another factor that may determine the value is the output performance at the peak hour. If the water flow is regular and there is enough pressure on the faucet, the Rheem RTE-13 comes with a decent flow. You will not have any trouble while operating with the heater.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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Coming to the design of the product, the RTE 13 can ideally have a space-saving concept. When you buy any heater, you must take note of the space available on your wall. If you just want to mount it, make sure that nothing else and especially flammable objects are near to the heater.

However, it comes with a much compact unit. Since there is not any tank present, there is no spaced used for storage. The dimensions are around 7.25 x 7.25 x 7.25 inches.

Because of this compact size and nature of the product, it can be paired with any household appliances like showers, faucets or washing machines for your immediate needs. 

Coming to the installation of the Rheem RTE-13, this is another part that I liked. It comes in a 1 complete unit. So you do not have to assemble anything before installing.

Moreover, there is a wall mounting option available with brackets inside the package. So you can just install the brackets to the proper space just before you go to install the heater.

This tankless water heater weighs only 7.35 pounds which is much lighter than any of the products available in the market. So to lift the product is not a big deal. It hardly takes a few minutes to complete the entire setup and you may start using the heater in no time once it is ready.

However, there is one thing that you must keep in mind before installing the Rheem RTE-13. It is a warranty policy. The manufacturer clearly states that the warranty will be void if the product is not installed by any Rinnai Trained professional. So to install it, you need to take the help of any Rinnai trained professional.

The installation charges are not much and it is quite affordable. However, if you want to save up on the costs, you can ask your local plumber to do the installation or the plumbing requirements. Here, the installation charges will depend on the quantity of pipe that you need.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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1. It is fully electric
2. The product can easily supply till 4 gallons per minute
3. The size is highly compact and great for lifts
4. You can get a 10-year warranty
5. All the interior components are durable
6. Rheem Tankless Water Heaters are easy to troubleshoot due to the display of error codes.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

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1. Heat Flow is low at times

Solution:

The Rheem RTE 13 comes with a decent heating coil that can provide you a maximum of 4 Gallons per minute. But the rate of flow through the faucet depends on the water pressure that you have.

If you are living on the top floor of a multi-storied building, it is evident that the water pressure will be low here. You may not be able to get faster water. You can take the help of an external pump to make the rate of flow faster.

2. Maintenance required

Solution:

Though the internal components of the RTE 13 are durable, they also have a single layer of protection. If you live in an area with a higher amount of contamination, sediments will be formed.

If you are not flushing the water heater, these sediments will get stuck and may cause erosion. The internal components are not so strong to evade any type of corrosion. So you must keep maintaining the product once in a while.

3. Startup takes time

Solution:

The Rheem RTE 13 includes a Time delay service. So it takes time for the product to gear up. On average, you can consider the product to start providing hot water after 1 minute. However, this also depends on the locality. If you are living at places under extremely low temperatures, the groundwater is almost frozen.

Since there is no storage system to heat the entire water present, it will start providing just lukewarm water. So to get the best performance, you may have to wait for a little.

4. Difficult for large families

Solution:

The Rheem RTE 13 comes with a decent flow of rate. However, it is not efficient for larger families. The heater may provide continuous hot water simultaneously to different faucets but not at the same time. It can provide hot water either to a shower or a dishwasher simultaneously.

So if you have a larger family, consider purchasing a different model. But if the family is only of 2-3 people, this Rheem water heater can be a decent purchase for you.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

Buy on Amazon

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

• On-unit temperature control, LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
• Please refer the User Manual for installation instruction.

Buy on Amazon

Going through the complete review of the Rheem RTE 13 will surely help you to know all about the product. Comparing all the features and the performance, the Rheem RTE-13 seems to be a professional buy. The product includes some specific features that will always make it more professional to use.

We found the heater works precisely and efficiently to work regularly. So if you want to have the Rheem RTE 13 along with your needs, I think that it can always be a great buy.

Having a professional heater always eases down the difficult works. Whether you need a hot bath or multiple faucets with hot running water, you need a heater that will be able to provide you the optimum support. The Stiebel Eltron Tempra 24 plus is one such product that offers you the best performance.

However, if you are just seeking around to know if the Stiebel Eltron Tempra 24 plus is at all a perfect match for you or not, this is the place to be. With our complete review on the Stiebel Eltron Tempra 24, you can get to know all about the Performance, Features, Design, Value and much more about the product.

Read below to know complete in-depth details about the product.

1. Endless Hot Water

The one feature that will surely impress you the most about the Stiebel Eltron Tempra 24 plus is the heating speed and the flow of water! The relation between them is always on the higher side so that you can get a fast rate of hot water flow.

So, this Tempra tankless water heater comes with a perfect balance of 1 GPM flow while having a 90-degree rise. Coming to the average use of the product, you can also find a 20-degree rise at a GPM of 8. So the product is compatible enough for delivering you high-speed hot water at an endless rate.

2. Low Fluctuation

The Stiebel Eltron Tempra 24 plus includes a top-of-the-line microprocessor for the use. This technology is highly updated and because of this, it can provide stability to the product. So even if you are in a cold-weather locality and you need a high supply of hot water, it can easily match the requirements.

This is the reason why the product has a top manufacturing configuration and because of this, the product has decent stability. Coming to the fluctuation, it has almost low fluctuation at all.

3. No Venting Needed

The one impressive feature that we liked about the product is the easy installation option. Most of the gas-based heaters include proper energy efficiency. But at the same time, it may be slightly harmful to you to have the exhaust gas inside the bathroom. You need a proper venting option for this.

But the situation with the Stiebel Eltron Tempra 24 plus is different. Since the product is completely made out of electric power, you will not require any exhaust option at all. So it does not require any type of venting.

4. Great Design

Apart from the performance and the flow rate, the one attractive thing about the Stiebel Eltron Tempra 24 plus is the compact design. Coming to the looks, it may not be the best one out of all the heaters available, it is still a very effective model. The product comes with decent looks and has a sleek design.

There is no tank installed and so it neither eats up a lot of space. The dimensions are around 21 x 20 x 9.6 inches which are quite small to fit into the wall. So installing the product will never be a problem for you. Moreover, it includes an LCD panel that will always show you the current operating temperature of the water flowing out.

5. Seismic Proof Construction

Coming to the built-up of the Stiebel Eltron Tempra 24 plus, needless to say, that the product has a proper and stable construction. When you are installing a proper tank-based hot water, you need a proper seismic proof construction. This is specifically used for heaters which are used in places that have more contamination.

This coating helps to prevent the tank from forming any type of contaminants or limestone. But with this Tempra water heater, there is no tank present and the heating takes place with the flow of water. So there is no such preventive construction required. 

6. Digital Temperature Control

Apart from the basic features of the heater, the one thing that will impress you is always the digital temperature control. It is obvious that if you live in areas that change the climate drastically due to the seasonal changes, you will not always require the same temperature.

But without any temperature control, it will get more difficult for you to adjust it. The Stiebel Eltron Tempra 24 plus features a digital temperature control at the front panel of the heater. This will allow you to change the temperature according to the requirements and will give you the proper results.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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Apart from the features of the Stiebel Eltron Tempra 24 plus, what attracted us the most is the performance of the product. We found that it can easily scale up to a range of 5.0 GPM of hot water.

This flow rate is determined by the rate of hot water being heater according to the rise of 30 degrees Fahrenheit. So when it comes to the rate of flow, a 5.0 GPM seems to be decent for any household. 

We tested the rate by turning on 3 showers at the same time and it worked perfectly for a long time. However, it has key specifications that make the product much more valuable to use. This works well when the incoming water is cooler and it requires time to heat the water.

So when we compared the Stiebel Eltron Tempra 24 with other regular heaters, we found that most of the other heaters can provide around 3 GPM. So the Tempra 24 Plus is much faster in performance.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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The Stiebel Eltron Tempra 24 plus comes with a proper warranty option for using the product. Unlike most of the other products, this water heater offers a 7-year warranty on the internal components. Apart from this, you can also get a 3-year warranty on the heating element.

But for this, you need to be eligible to claim the warranty. The only requirement is that the product must be installed by a professional. If not, it will void the warranty regulations from the manufacturer and you will get a proper result. For more information, you can refer to this link.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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When you consider the value of the Stiebel Eltron Tempra 24 plus, certain things will come to mind. The first thing that you need to consider is the efficiency, performance, and daily running costs. This electric tankless water heater comes with an advanced flow control feature. This feature is specially used for self-modulating technology.

So it will only heat the water when the heater senses a flow of cool water inside. So these cuts down the regular running costs and give you a proper result. You will not have to worry much as the Tempra 24 plus is indeed a valuable purchase.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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Stiebel Eltron dated back to 1924 as one of the pioneers of the water heater industry. Coming from the Grassroots of Germany, Dr. Theodor Stiebel started this company to provide the most advanced solution for the water heating requirements.

In fact, it all started with the production of the immersion water heaters. The ideology behind the foundation of Stiebel Eltron was simple- Make it Right, then keep making it better.

Coming to the company service and the support, needless to say, we found that the company has decent service. When we contacted the support of the Stiebel Eltron, we were happy with the response. We received it only after a few hours.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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1. It is easy to install
2. The rate of flow is fast
3. The product has standard wiring options
4. It includes a limited warranty

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

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1. Not so good for the hard water

Solution:

This is mainly because the Tempra 24 plus is manufactured with the technology of PSI7. This is not much compatible with hard water. In such a situation, you may often find that the heater is not being much compatible to handle the pressure.

So you need to put an extra effort into the maintenance. The best thing to do would be to use vinegar extract and them clear out the pipes. Try regular flushing along with it to keep the heater safe.

2. No alternative power source

Solution:

The product is specifically designed to operate under electricity. This is specifically useful for the city and urban locality where the heater can consume low electricity and perform well.

But if you are looking for a gas-based fixture, this may not be the correct option for you. You may have to take the help of alternative devices. The Tempra 24 plus may not be the best option for you under such conditions.

3. Not so good for extreme cold weather

Solution:

You may not have to panic too much about it. The Stiebel Eltron Tempra 24 plus is a suitable product for areas that are cold but not extremely chilly. In such a condition it will only be able to provide lukewarm water. The heater works only when it recognizes a flow.

So by the time, it can heat the water, it has already come out of the faucet. So the only thing that you can do is set up the thermostat at a higher temperature. This may help you to get a decent temperature.

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

Buy on Amazon

Stiebel Eltron Tempra Plus 24 kW, Tankless Electric Water Heater with Self-Modulating Power Technology and Advanced Flow Control

$697.00

Buy on Amazon

Considering the performance and the other specifications, we would say that the Stiebel Eltron Tempra 24 plus is a top buy. Moreover, the product seems to be extremely professional when it comes to performance and high capacity. But certain factors make the Tempra 24 plus edge past over others.

We hope that going through the complete review mentioned above will help you to go ahead with the heater. If you still have some doubts to clear, you can mention it down in the comment section.

Having a tankless heater for your home is always an added advantage for your needs. Choosing a proper tankless heater means that you can get instant hot water. Having the Rinnai RUC98iN is one such product that you can get. There is nothing better than having the RUC98iN available for your needs.

However, if you are just about to purchase the product, you must have deep knowledge about it. Here, we have come up with a complete review of the Rinnai RUC98iN that you can always go through. We hope that going through his review will always help you to understand more and then purchase it.

1. Less Energy

One of the biggest advantages of RUC98iN Rinnai Tankless Water Heater is that it can always use less energy. When we compare it with any other regular models available, the energy consumption is almost 50% lesser than others.

This is mainly because the water can easily pass through the heating coils just before it will reach the distribution lies. So it always consumes lower energy.

2. Less Space

There is an added advantage because of the design of the Rinnai RUC98iN. The product is designed for the on-demand water heater. This makes the tankless water heater much more compact.

Thus, the space consumption is much lesser than most of the products. Moreover, it does not feature any tank. This is the reason why it can consume less space. 

3. Continuous Supply

The one thing that we liked the most about the product is the continuous water supply. Most of the traditional heaters take time to heat the water and then can provide you. But it is not the same for the RUC98iN. It can offer a continuous supply of hot water without any delay at all.

4. Safe and Clean

Another advantage of using the RUC98iN Rinnai is that the product is completely safe and clean. The tank-based heaters may not be safe to use when the stored water is unused.

In such a case, it is not a proper way of using the heater. It may lead to severe diseases. It does not have a tank at all and thus, it is completely safe to use at any time.

5. No Fire Problems

One of the biggest advantages of using this Rinnai Ultra Series Water Heater is that there are no fire problems with the heaters. The tank-based heaters may have overheating problems. This mainly happens when the heater is poorly maintained. However, this Rinnai water heater has a standard safety feature that reduces fire problems.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

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1. Condensing Technology

Most of the heaters from Rinnai have advanced technology for heating the water. But at the same time, the Rinnai RUC98iN includes a condensing technology. This allows efficient water heating a notch that can deliver it more efficiently. Thus, it is far more efficient to deliver your hot water faster.

2. High Energy Factor

Another important feature of the product is the energy factor. We have found that the product includes an energy factor of 0.96.

3. Dual Venting

The one unique feature of this Rinnai Ultra Series Water Heater is that it can give you the best venting options. You can get two options including concentric and PVC. 

4. Design

Just like any compact heater, this tankless water heater also saves up space. Because it is slim in design, the product can be very compact to use.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

The RUC98iN includes a simple mechanism and a smart operation of work. It specifically works more like any other product from Rinnai and the performance is always good.

However, at times, you may feel that the product is not working properly. In such a case, there will be error code for display. In case of such a display, it is always essential that you inform the professional to work on the problems. We have covered around 36 Error Codes for Rinnai Tankless Water Heaters in a separate article.

The one important feature of purchasing any product from Rinnai is that you can get a professional service. For this, all that you need to do is to register the product with a service professional.

In case the error code shows up, the issues will be sent directly to the office. This will allow the technician to contact you and get prepared in case you need a service or there is any damage to the product.

To avoid any type of problem, the one important thing that you need to consider is maintenance. Any water heater requires proper maintenance. The tank-based heaters require more maintenance while the requirements for the tankless ones are less.

At the same time, Rinnai offers professional maintenance for all the products. In case you are facing multiple problems with the product, the ideal thing to do would be to flush the Rinnai RUC98iN. You can follow the manual guide to properly flush it.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

Most of the products available from Rinnai offer a decent energy factor. As a result of this, most of the latest models include a UEF of 0.95. The Rinnai RUC98iN is another impressive product from the manufacturer and it can easily reach up to 0.96.

This is mainly because the product meets with certain criteria and the gas consumption is very low. So even if you are present in the cold areas, the energy becomes highly efficient to work with. So you can always opt for it. 

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

Measuring a star rating for any product will mean that it has to meet certain criteria. As a result of this, the product must meet all the certain criteria. The Rinnai RUC98iN comes with a specific performance setup and it allows you to get proper requirements.

Moreover, the product can always meet the Energy Star Blue logo and as a result of this, it is always handy to use the product. Thus, the electricity consumption is also low for the product.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

Installation is an important factor to consider while choosing any tankless water heater. Thankfully, the Rinnai RUC98iN nails the requirements and gives you proper results. The heater includes a condensing technology.

This will allow the heater to be easily installed. Moreover, it comes with dual options. So you can always choose either the PVC venting option or the concentric venting option. This will allow any heater to work properly with the safety measurements.

The one thing that you should always keep in mind is that the installation must be done by a professional. Rinnai allows the warranty to be valid only when you take the help of a Rinnai Trained professional to install the heater in your home. For more on warranty, you can check this link.

However, this is not all. The initial installing option is much more because it requires a complete plumbing setup. For this, you can take the help of any local plumber to get the job done for you. It always takes less time to complete.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

1. The one big benefit of using the Rinnai RUC98iN Ultra Series is that the product can be used by a professional. The mechanism is simple and if you know any professional, it can be easily installed without any problems.

2. The other big benefit of purchasing it is that it can save you a lot of money. The product may have a high cost while purchasing, but it consumes very low electricity and gas consumption. So it can always save up a lot of money.

3. This water heater mostly works in silent operation. While we compare it with other products, the Rinnai RUC98iN runs in a smooth operation and it can save up a lot of money.

4. The one feature that we liked the most about it is that the heater includes temperature control. There is an adjustable thermostat present that allows you to change the temperature. You can easily adjust the thermostat dial and then set up the temperature according to the requirement.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

1. The High GPM trigger is only set at 10 GPM.

Solution:

The natural gas heater works in this mechanism and this will not allow the heater to work well with lower pressure. In such a condition, you need to adjust the thermostat according to the temperature that you require. Just increase to a suitable temperature.

2. Drop-in Temperature

Solution:

This happens mostly when the heater is connected with multiple faucets and then all of them are running. You can leave the heater to default and after a few seconds, you will start getting back the warm temperature.

3. Takes Time to heat

Solution:

The Rinnai RUC98iN works very fast when it comes to heating the water! This may happen once in a while when you are not using the heater for a long time. In such a situation, it is important to flush the heater and then wait for a few minutes. You will be able to get back the default functions of the heater in no time.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

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When we compare the RUC98iN with the other products available in the market today, there are not many products that can be as comprehensive as this one. There are a lot of heaters available in the market now and most of them are smaller in size. Naturally, the capacities of such products are much lower than others. 

But in the case of the RUC98iN, the heater is much decent in the size. This allows you to save up money because of the performance and the daily running costs. There are not many reasons to worry about the product. Thus, we would always prefer to go ahead with the Rinnai RUC98iN as it has compatible options along with your needs.

Also, we have a detailed article on Best Rinnai Tankless Water Heaters in case you want to have more options.

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

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Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• INDOOR installation only. Fuel Type: NATURAL GAS.
• Concentric or PVC venting option
• Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
• The space-saving design allows Indoor Installation type
• Ultra low NOx emissions

Buy on Amazon

The Rinnai RUC98iN is a top buy from the manufacturer. There are a lot of positive features that will impress you while you are using the product. Considering the complete review and after testing the heater, it is evident that we have liked the whole features and performance of the Rinnai RUC98iN Ultra Series Natural Gas tankless water heater.

You can look for more information present above that will guide you to understand whether to purchase the product or not. However, if you are facing any problems while using the product, you can always choose to mention it in the comments below.

We can solve that query in this article. We have reviewed multiple or to be exact, five, models of the water heater from Titans with their feature and pros and cons to help you decide which one is the ideal choice for you.

As the name suggests, a tankless water heater comes without a storage place i.e. a tank. So the hot water is not stored somewhere but rather heated directly through a coil and supplied to the residence. They are perfect for large families who want to enjoy long, daily showers without worrying.

Tankless water heater might be considered expensive at the time of installation as compared to the tank one initially but they are an investment. With the help of them, you can observe a reduction in electricity bills every month and therefore as we mentioned earlier, it’s good for the long run.

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Titan’s water heater is not just tankless, but it also with state of the art technology. Along with multiple cool features like LCD, temperature controls, good rust-free built, they also have a digital microprocessor in their design to measure the temperature around 21 times in just one second.

In addition to this, the company provides good service, the staff and technicians are dedicated and help consumers in the entire process from buying to installation. Titan’s also have a wide range of models for smaller or larger houses and they are economical as well as energy saving.

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A lot of factors can modify your choice of buying the right tankless water heater but here are some of the essential things to keep in mind while buying this product:

1. Cost

Needless to say one of the first things to decide is your price range, you can get smaller ones in cheaper while the larger ones are costly. How much money are willing you spend, will change your product choice.

2. Warranty

Different product covers different scenario, so before buying make sure which things are covered and how long is the warranty. Make sure to keep that page clearly.

3. Console Panels

Tankless water heaters come with buttons to adjust the temperature as required. Some of them are bit more technical and have multiple options while others might have a singular button to adjust the temperature.

4. Size

As we said, water heaters are available in multiple sizes, the smaller one might be cheaper but if you planning to get them for a large house then be prepared for unwanted temperature adjustment as it might not able to withhold the power load.

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Established in 1985, this Florida based company is part of Niagra industries and is famous for its manufacturing of electric water heaters. The company is known to make products with PID controllers to respond correctly to control function and replacing the on/off system. Along with this, analysis of air-water differential is another important feature that makes it better than other rivals in the market.

Here are our top 5 picks for Titans Tankless water heater, hope this helps you in making a good decision.

1) Titan-SCR2 N-120 Electronic Digital Tankless Water Heater

This model of Titan tankless water heater is manufactured at Niagara industries and uses various energy sources which makes it a suitable and practical choice when dealing with a large platform of demands.

Features

• Precise temperature: A manual thermostat so that the temperature can be adjusted according to the need per day.
• Modern analyzing system: Titan-SCR2 Electronic Digital Tankless Water Heater is equipped with state of the art analyzing system avoiding disadvantageous dry starts on the heater
• Combating rust and mineral deposition: To prevent rust and mineral accumulation, Titan SCR2 electronic digital tankless water heater is encased in a covering of brass and copper making it durable for everyday use.
• LCD screen: For practical analysis, an LCD screen is provided. This has improved visual quality for our customers.

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Apart from N-120, the SRC2 series has other models as well including:
• N-100
• N-85
• N-75
• N-64
• N-42 N-10

2) Titan-SCR2 N-85 Model Electronic Digital Tankless Water Heater

Another awesome model in the SCR2 series is N-85. Enclosed in Copper and brass which allows it to remain rust-free, avoids mineral deposition and making it durable. It is slightly larger than other tankless water tanks but still smaller than conventional ones. Although, despite the size, it delivers up to 3.0 GPM only. It weighs around 6.4 lbs. and delivers 8.5 KW at 220V. It has 38 Amps max.

Features

• Energy Saver: It is known to save up to 60% energy as compared to other old heaters. This is done by control of water on demand, which allows a decrease in unnecessary use of power hence saving energy and cost.
• Versatility in Water: Unlike some models that only heats freshwater, this model heats water regardless if it is from well, river, hard or soft.
• Dual Heating Chambers: This allows quick and effective heating. At only 1 GPM the temperature can be raised to 60 Fahrenheit.
• Rust-Free: Enclosed in a good, powerful steel coating from outside and brass/ copper coating from inside not only provides strength but also gives longevity by keeping it rust free and free of mineral deposition.
• Temperature Control: Placed on the front cover, the temperature control gives easy access to adjust the temperature according to desire. Unlike other products, it is very easy and understandable.

Titan N-85 SCR2 Electric Tankless Water Heater, 8.5 KW, 220V / 240V, 38 AMP

$243.00

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3) Titan-SCR4 Electronic Digital Tankless Water Heater

With upcoming times a new system is required to fulfill the modern needs of our customers. Common showers and sink can be fitted with Titan-SCR2 electronic digital tankless water heater and Titan-SCR3 electronic tankless water heater to provide warm water however spray showers and luxury tubs require modern technology.

For this purpose, the Titan-SCR4 electronic digital tankless water heater was made. For homes with jet showers and pool tubs, Titan-SCR4 is perfect to provide warm water.

Features

• Advanced Technology: Even though SCR2 and SCR3 are equipped with state of the art technology a more advanced system in SCR4.
• Spray Showers and Tubs: Houses with these appliances can benefit from the titan-scr4 electronic digital tankless water heater as it is a powerful tankless heater formulated for these specifically.
• Anti-Freeze Technology: Homes located in colder areas face issues regarding their water pipes freezing owing to the cold climate around them but scr4 has readily solved this issue as it is designed to deal with this.
• More Power: SCR4 is made for modern use and because of this it has more water heating capacity.

SCR4 N-180 Titan Tankless Water Heater, 77 amp, 18 kW.

• Stainless Steel cover
• Water inlet and outlet from below

$405.00

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It is available in these models:
1. N-180
2. N-120

4) Titan-SCR3 Electronic Digital Tankless Water Heater

Titan SCR3 electronic digital tankless water heater has more to offer than Titan-SCR2, as it has an advanced working system and better technology. The display screen has been upgraded and is useful in providing better data analytics than Titan-SCR2.

Features

• New Setup: As compared to SCR2 Titan-SCR3 Electronic Digital Tankless Water Heater is well equipped with advanced technology which is better from the previous heater.
• Advanced Monitoring Screen: SCR3 is fitted with a screen that is user-friendly and easier for our customers as it displays accurate temperature and energy being utilized in standard and nonstandard units.
• Easy Access: Because of these technologies it is easier to keep check and balance of energy use and temperature controls.
• Quad Four: Quad four makes Titan-SCR3 electronic digital tankless water heater a better choice in managing changes in water.

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It is available in the following model:
N-160

5) Titan Laser Instant Electronic Water Heater

Available in 3 models namely L-64, L-85 and L-75, this series is the most economical of all and yet manages to save energy cost to up to 60%. The heaters are small in size but are good enough for small apartments, condo or trailer.

 Like other Titan products, the laser series also comes with the latest technology example integrated high-speed electronic circuit that not only delivers quick result but also protects internal circuits from getting damaged.

Features

• Energy-Saving: Despite the small size, the models are capable to save around 60% energy making it a good investment in the long run.
• Safer: The models are safer than other conventional heaters as there is no risk of tank rupture, unnecessary fumes or the worry of flooding.
• Soft and Hard Water: The product is good in demand because of its ability to heat both soft and hard water, which is not the case with a lot of conventional heaters.
• Smart Work: The product is designed in such a way as to identify when the tap is left to dribble and so in such a case, the heater won’t turn on and continue saving water and energy

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If you live in a location with good public water availability and are looking for a long term investment in water heater than purchasing a Titan tankless water heater is one of the best ideas. The models are comparatively cheaper, smaller and safer than other conventional water heaters in the market. The small size makes it easier to deliver and install and hence if you can install it by yourself, you can even save the cost of calling a plumber for installation.

With proper maintenance and use, the models can last up to eight years, and if a product becomes defected before that, their 10-year warranty is a great option to replace or repair the product. The only downside to them is the low water rate that is usually appreciated while taking a bath and the early breaking down of devices if exposed continuously to mineralized water.

With that being said, If you are looking for a lavish tankless water heater that can heat your whirlpools and jets and comes with advanced technology then Titan-SCR4 electronic digital tankless water heater will be the best choice for you but if you are looking for something cost-effective that is good enough for small apartments and is great for energy saving then Titan-SCR2 N-120 Electronic Digital Tankless Water Heater is the perfect choice.

The copper brass covering, LCD screen, temperature control manuals and auto-detection of water ratio to avoid dry starts are some of the best features of this water heater.