The 40 Gallon Gas Water Heater includes several features which make it much easier for you to use the product. However, if you are still facing difficulties in choosing the best 40 Gallon Gas Water Heaters, you can follow the guide that I have mentioned below. 

If you are just wandering all over the internet for the Best 40 Gallon Gas Water Heater, just stop for a sec… Wandering here and there won’t do any good for you.

In fact, you need to have a proper guide that’ll take you home. So what are you waiting for? We’ve reviewed over 20 models and sorted out the 5 Best 40 Gallon Gas Water Heaters available for you. I hope that this guide below will help you to choose the product that you want. So without any further ado, let’s get started with the review.

To select the 40 Gallon Gas Water Heaters for this review, we took a thorough and hands-on approach. Our team of experts spent weeks researching and testing various models to ensure that we included only the most reliable and efficient products in our list.

We considered factors such as heating efficiency, ease of installation, durability, and user reviews to ensure that our selections would meet the needs and expectations of our readers. Additionally, our team has years of experience in the plumbing and heating industry, which allowed us to evaluate these products with a critical eye and provide accurate and trustworthy recommendations.

Below are more factors on how we selected these 40 gallon gas water heaters:

1. Tank Quality

One of the factors that came to my mind while choosing these 40 Gallon Gas Water Heaters is the tank quality and the interior tank. It is natural that if the product does not have a decent tank quality, there may be rust formation and also scaling on the interior components.

If you are staying in an area that has more contamination, you will have corrosion formation inside the tank if it is made up of low quality. This will mean that the product will slowly get damaged and will not be much durable. But with the help of a proper tank quality made up of stainless steel, things will get easier.

2. Heating Element

Not a lot of people do focus on the heating element of the product, but it certainly becomes a major factor to consider. The heating element is one of the main components in any gas heater and if it does not function properly, you may face several issues with the product. So you must choose a product that functions well.

I have listed only those products that have a decent heating component. In fact, because of this, the heating and recovery in the 40 Gallon Gas Water Heater takes place faster and much more efficiently. This also allows the heater to run for a longer period.

3. Safety Features

One of the primary factors which I considered is the safety features of the 40 Gallon Gas Water Heaters. Safety is one thing that every consumer must consider while choosing a product. All technology-based gadgets do have the risk of failure and may cause accidents.

So to get rid of this, every gas water heater must include the basic safety features which will keep the product safe and ready to use. However, there are some features like the Temperature and pressure valve which work when the pressure gets very high.

Some of the safety features that I have considered are the automatic shut-off valve and the temperature overheat protection. Both these features are necessary to consider when the heater raises the temperature and to protect it from any severe damage.

4. Energy Consumption

Energy consumption of a gas-based heater is one of the primary factors to consider. To be honest, gas water heaters do not consume much electricity. However, there are still some factors that can affect the rate of electricity consumption at any point in time.

One of the major factors which can raise the electricity bills that I found is the volume of the heater that you are using. Now the electricity consumption of the 40 Gallon Gas Water Heaters is much lower than any instant heater. However, the efficiency factor comes into consideration. 

Apart from this, another reason why the electricity bills do get high is just because of the temperature and the climate. If you live in colder areas, the heater will have to naturally work more. This is mainly because most of the 40 Gallon Hot Water Heaters have a default thermostat setting.

So if it is not manually adjustable, the heater has to work more. In such a case, it starts consuming more ignition including both electricity and also gas. Thus, it may have a standing loss.

While picking the top 40 Gallon Water Heaters available, I had to make sure that there was only a marginal standing loss that will not raise your electricity bills easily.

5. Installation Area

One of the primary factors which people mostly do ignore is the dimensions and the size of the product. Picking any random water heater may just be bigger. In fact, because of such issues, you may not be able to install the product properly as well. While choosing any product, I always make sure that the 40 Gallon Gas Water Heaters are compact and perfect in size.

This will help every user who has smaller or compact bathrooms or even free wall areas to buy the product and then use it. However, you may need to make sure that the product you choose has the proper installation connectivity area around it.

6. Pressure Bars

Another major factor that I have considered is the pressure bars of the product. This generally means that the product can perform with low and high pressure as well. There is a pressure control valve present along with the heater which allowed me to easily use the top product in a low-pressure area. I found this factor to be very helpful when it came to high-rise buildings.

If you live on the top floor, it becomes difficult for you to get proper pressure on the heater. Since most of the top-floor apartments have low water pressure, buying any professional heater may not do if you do not have proper pressure bars. So it is very important to choose a product that has proper water pressure.

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 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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1. Reliance 6-40-NOCT 400 35500 BTU Tall

Self-Cleaning

Like almost all water heaters produced by Reliance, this piece of equipment features a self-cleaning feature in its design, which helps greatly in preserving the unit’s life for an extended period. The device uses a cooling fan to circulate air around the coils, removing built-up grime.

Glass Lined Tank

Even though the glass-lined tank doesn’t draw the attention of most buyers, you might be fascinated by this feature after knowing its beneficial facts. First of all, the glass lining helps to keep the water hot by trapping heat from the ambient air.

In addition, it doesn’t corrode and therefore lasts longer than other materials used in conventional water heaters. At the same time, it allows for accurate water temperature monitoring, which is important for maintaining optimal water heating temperatures.

Pex Polymer Lined Heat Trap Nipples

Pex polymer-lined heat trap nipples used in this water heater are manufactured with a patented heat-trapping design that can help to reduce the amount of energy used by your water heater, prolonging its life. 

One of the most advantageous facts of using a sex polymer lined heat trap nipple is that it helps to prevent water from constantly flowing out of the system. This can help keep your water heater running at its best and save you money in the long run. 

Honeywell Millivolt Generator Gas Control Valve

Unlike most conventional water heaters, this unit comes with a Honeywell Millivolt Gas Control Valve that’s a game-changer. The valve helps you maintain consistent temperatures by controlling the flow of gas to the burner. 

This ensures that your water heater runs at its best and consistently produces hot water. The valve also has an adjustable shutoff feature, so you can always ensure safety and reliability. 

2. A.O. Smith GCR-40 Water Heater

Glass Coating:

The one thing that impressed me the most about the A.O. Smith GCR-40 Heater is the presence of the blue diamond cut glass technology. I found this glass coating to be very impressive in a stainless steel tank. Because of this material, the product has a low limestone formation.

Fast Microprocessor:

The product features an internal microprocessor. Because of this feature, the heater can increase the parameters. Because of this, the ability to perform better allows you to get better results. Thus, the heater can have a much faster healing response when I compare it with others.

Long-lasting Polymer:

Apart from this, I found that A.O. Smith GCR-40 Heater has a long-lasting polymer. To support the durable quality, there is also a Dynaclean dip tube. The feature of this tube is to reduce the formation of limestone built up.

Smart Technology:

Furthermore, the one thing that I liked the most about the product is the presence of the self-powered gas valve. This is a smart technology used by the heater which allows the heater to continue heating without external power.

3. Rheem Performance Plus Tall 

Push Button Ignition System

No more hassle during startup, as you’ll get a handy push button for the ignition system. The benefits of a push-button ignition system in an electric water heater are manifold. It’s much easier to operate, requiring only a thumb or finger press rather than a twist of the key. 

This makes it more convenient for those with limited strength or dexterity and people who are busy and want to avoid having to fumble around for the key. 

Easy Maintenance

A thermostat that can automatically adjust the water heater temperature to conserve energy and save money is a great option for homeowners. In that case, Rheem has just managed to ensure this convenience. 

This thermostat will help to keep the water heater at a consistent temperature, which leads to reduced wear and tear on the heating element and coolant system. 

It can also help conserve energy by reducing the amount of time the water heater is running. This can result in significant savings on your energy bill. Alongside, it prevents damage from occurring to your equipment if the water heater temperature becomes too high or too low. 

Consistent Energy Factor

One option that ordinary buyers often overlook is the energy factor. The energy factor measures how efficiently an appliance is at converting electricity into heat. In the case of Rheem Performance Plus, the company claims to have a consistent 0.93 energy efficiency rating. 

This means that they use less electricity to produce the same amount of heat as other models. In addition, this type of water heater is less likely to cause any power spikes or brownouts, which can lead to problems with your appliances and wiring in your home. 

Premium Grade Anode Rod

The premium-grade anode rod used in this water heater helps ensure reliable operation, superior performance, and long-lasting durability. This rod is made of durable materials that resist corrosion and provide consistent heat delivery.

In addition, it produces less scale buildup inside the water heater, which can help keep your unit running smoothly and reduce the amount of time it takes to heat up water. 

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 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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4. Bradford White RG240T6N Water Heater

Easy to Install:

The RG240T6N Bradford White 40 Gallon Gas Water Heater comes with easy installation options. Since the product is very easy to set up, the one thing that you will want to get is the easy setup option and it happens to be fast with the product.

Maintenance:

I found that the Bradford White RG240T6N Hot Water Heater is far easier to maintain when you are using it regularly. There are simple steps that you can always follow if you just wish to flush the heater in the least possible time.

Thermal Switch:

The one thing that I liked the most about the product is the resettable thermal switch. Because of this feature, the heater carries out fast performance and also advanced safety options. You will not have to worry about safety.

SceenLok Technology:

Apart from this, the product includes Advanced SceenLok Technology. This is a unique feature of the Bradford White RG240T6N Heater that allows you to protect the heater from any type of overheating concerns.

Including Hydrojet:

Furthermore, it includes a factory-installed Hydrojet. This allows you to get better performance with the product. So you can always get fast heat-up option with the heater.

NHS-568

• Bradford White ICON System
• Advanced ScreenLok Technology Flame Arrestor Design
• Resettable Thermal Switch
• Maintenance-Fre
• Factory-Installed Hydrojet Total Performance System

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5. Westinghouse 40 Gal Water Heater

Stainless Steel Tank:

The Westinghouse 40 Gal Water Heater includes a stainless steel construction tank. While reviewing, I found that this material is being widely used to save interior components from limestone formation.

Thermal Efficiency:

Apart from this, the product has a 98% thermal efficiency. So it comes to be quite efficient to use when we use the electricity mode. However, the product has a 057 standby loss which could have been improved. 

First-Hour Delivery:

Needless to say that the presence of high first-hour delivery is very impressive. Precisely, the heater can generate about 84 gallons of hot water at first. So even if you have high requirements, it will be able to deliver to you.

Recovery Rate:

The one thing that impressed me the most is the recovery rate of the product. Even in extremely cold weather, it has a recovery rate of 20 GPH which is quite decent to use. So if you are staying at a high altitude, it can be a great choice for you.

Anode Rod:

The Westinghouse 40 Gal Water Heater works efficiently without the use of any anode rods. This is mainly to reduce the amount of corrosion within the heater. It can easily be more durable to work with.

Westinghouse 40 Gal. 4500W Lifetime Warranty Electric Water Heater with durable 316L Stainless Steel Tank

• Directs cold water to heating element near bottom of the tank
• 240-Volt connection required for installation
• Laser-welded 316 l stainless steel construction resists corrosion
• Limited lifetime warranty on tank, 6-year parts
• Delivers 59 Gal. of hot water in the first hour

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6. AO Smith GPVT-40 Water Heater

Natural Gas:

The AO Smith GPVT-40 Heater uses complete Natural Gas to work with. Because of this, the heater has low emissions from the product. As a result of this, it is quite environment-friendly to use in your bathroom.

C3 Technology:

While testing the product, I found that the AO Smith GPVT-40 Heater is Equipped with C3 Technology. It is a fast heating technology that allows fast heating with the sensible use of gas. So the heater only ignites when there is a flow of water.

Powerful Vent:

The one thing that has impressed me the most about the AO Smith GPVT-40 Heater is the Versatile Power Vent design. The product is perfectly balanced to emit natural gas out of the room. This allows you to keep the surroundings away from getting polluted.

Smart Ignition:

Another impressive feature of the product is the hot surface ignition. The ignition takes place from the closed tank and also with a base plate. There is a magnesium rod being used to heat the water inside. Thus, even without continuous heating, the water inside can remain warm.

AO Smith GPVT-40 Residential Natural Gas Water Heater

• Natural Gas
• Equipped with C3 Technology
• Versatile Power Vent design
• Hot surface ignition

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A.O. Smith GPVL-40 ProMax Power Vent Gas Water Heater, 40 gal

• Features an exclusive 3-position rotatable blower outlet which adds flexibility
• Dynaclean II dip tube optimizes inlet water pressure to minimize cold water regions within the tank
• State-of-the-art electronic gas control provides more precise temperature control; LED control light displays operation status information
• Hot-surface igniter is more robust and reliable than standing pilot, and reduces energy consumption
• 2-inch, thick, environmentally-friendly foam insulation reduces the amount of heat loss and contributes to overall energy efficiency

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7. Rinnai V65IN Tankless Water Heater

Easy to Install:

The Rinnai V65IN comes with a slim and sleek design, unlike other hybrid models. It comes with a complete tankless shape that allows you to get the fastest heat productivity.

Since it is only 45 pounds in weight, it becomes easier to lift the product and install it at a particular place. Since it is a gas-based model, installation could be done in just a few minutes.

Decent Rate of Flow:

One of the best features of using the Rinnai V65IN is that it has a decent rate of flow. For any tankless heater, when you get a delivery rate of 6.5 Gallons per minute, you will love the way it works.

To be fair, it has a great productivity rate and it is enough to cover the requirements of a family of 2-3 people. You can always get endless hot water in return for the product. However, the rate of flow varies upon then the temperature of the groundwater.

Easy to Control:

Another impressive feature of the Rinnai V65IN is the attractive control option. It has an inbuilt thermostat which you can control remotely with the help of the Control-R application.

It is a WiFi module that allows you to get connected to the device and helps you to adjust the controls of the product. You can easily change the temperature, set up timers, and even create schedules when you are in a hurry to take a shower.

8. A.O. Smith GPVL-40 ProMax Heater

Rotatable Blower:

The A.O. Smith GPVL-40 ProMax Heater comes with 3 positions rotatable blower. I found this feature to be very helpful when it comes to emitting gas away from the home. Because of the outlet, you can easily rotate the mouth and it is great to use.

Rotatable Blower:

The one thing that has impressed me the most about the product is the Dynaclean II dip tube. This is an advanced type of pressure valve which is great for high altitudes. The tube regulates the water pressure and gives you a better way to use the product even on tall buildings.

Temperature Control:

Apart from this, the product features an electronic gas control. The technology used is a combination of both gas and electricity. This provides more precise temperature control. So the electricity consumption is always low.

LED Control:

I found that A.O. Smith GPVL-40 ProMax Heater has an LED control light on the front face. This feature seemed to be very useful as it always displayed the current status. So if anything goes wrong, I could always get notified.

Surface Igniter:

The A.O. Smith GPVL-40 ProMax Heater has a hot surface igniter. Because of this, it can easily reduce the energy consumption of the product. I could always use it without any problems. You can read more AO Smith Water Heater Reviews in this detailed article.

Rinnai V65iN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Indoor Installation

• Endless Hot Water: Our tankless hot water heaters let you enjoy unlimited hot water flow throughout the house with a compact and durable design that fits your home and lifestyle
• Energy and Space Efficient Tankless Gas Water Heater: This small hot water heater conserves energy, only heating when necessary; Enhanced scale detection lessens possibility of serious, long-term damage to unit
• Optimal Water Pressure: This tankless water heater offers a high-performance hot water flow rate up to 6.5 GPM for a powerful, constant stream that serves up to 5 appliances at once
• Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
• Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively

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9. Eccotemp i12-NG Tankless Water Heater

Attractive Design:

Not many tankless water heaters focus on the design aspect, but the Eccotemp i12-NG makes this heater appear much more modern. Overall, it has a compact body that is quite space-saving; it features black tempered glass all over the body to make it look modern.

To make it even more attractive, the makers have installed an LCD right at the front that can show the current temperature of the heater.

Great Ignition System:

The Eccotemp i12-NG comes with a decent technology that is advanced and yet fast performing in nature. It has a safe and secure electronic ignition system that goes on just when you plug it into the electrical outlet.

To help the process of fast heating with efficiency, the Eccotemp i12-NG comes with a natural gas fuel system. It is also environmentally friendly that reduces the emissions of NOx from the environment. You can use it for indoor installations as well.

Automatic Controls:

There are multiple control buttons just beside the front panel that allows you to keep the heater safe. The Eccotemp i12-NG is unique because it has a child-safety lock button along with temperature controls.

You can also get an energy-saving mode that stops the ignition while keeping the temperature inside the heater warm. Installation becomes very easy because of the 1/2-inch NPT water fittings which are commonly found everywhere around.

Sale

Eccotemp i12-NG Tankless Water Heater

• Whole home indoor, gas powered tankless water heater, rated at 3 GPM that activates only on demand and no pilot light needed, reducing energy consumption
• Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
• Features fully automatic temperature controls with an energy saving mode and child lock technology
• Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord. Field tested to 5500 ft. elevation (not recommended to be used any higher)
• Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation

$318.94

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While creating reviews of the 5 Best 40 Gallon Gas Water Heaters, I went through several products. Because there are so many products already available in the market today, it became difficult choice for me to pick out the best.

It is fair to say that a lot of products caught my attention, but what impressed me the most is the A.O. Smith GCR-40 Heater. Several features of the product helped to pick this product as the top buy. 

• The product includes a Blue Diamond Glass coating. This is the highest standard of coating provided in any product to protect the interior tank. Because of this coating, it becomes easier to stay away from corrosion.
• It includes self-powered electronic gas. The reason why I liked this feature is that it can preserve gas and electricity. So the heater will start igniting only when there is a complete flow of water.
• The one feature that has impressed me is the diffuser dip tube. Because of this feature, the A.O. Smith GCR-40 Heater could protect the interior components from any type of limestone formation.
• Apart from this, the product also includes an internal microprocessor. Now, this is a very unique feature in the heater when it comes to providing enhanced parameters to work with. So the product could always be used for good.

There are several other features of the A.O. Smith GCR-40 Heater that will keep on mesmerizing you. However, if the price seems to be high for you, there is still a lot more to choose from. Do mention below if you plan to change your existing gas water heater and buy any of the new 40 Gallon Gas Water Heaters mentioned above.

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 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

There are so many products already available in the market and choosing the best one can always be a daunting task at hand. There are so many factors to consider when you are looking for the best one in the market today.

Without completing proper research, it always becomes a challenging part. You can always take the help of this buying guide if you are willing to pick the best model available.

Efficiency Ratings

One of the primary factors that you need to consider is the efficiency ratings of the product. Most gas water heaters are either powered by Natural Gas or Liquid Propane gas. However, the natural gas models are better in efficiency than the liquid propane models.

However, before picking up the product, you can simply have a look at the energy efficiency standards that are set up by NACEA. This will help you to get the best gas water heater accordingly.

Storage Heater Tank Size

The next important thing that you need to do is to consider the capacity that you need and also the storage space. If you have a family of 4-5 people, going for a 40-gallon water heater will be a must.

However, it may be bigger than any tankless heater. So you need to make sure that the size of the tank is sufficient for your home or not. When you choose the heater, make sure that it meets your costing expectations and has all the features that you need.

Eco-friendly

When you are using a gas-based water heater, it is expected to release the expelled gas from the vents. Sometimes, they may have a higher amount of NOx or Carbon. If the quantity is more, it will start affecting the environment near you.

This is the reason why you need to be specific about choosing an indoor model or an outdoor installation model. If you are using an indoor installation gas water heater, you need to install the vents as well to make sure that the amount of NOx is reduced and is low.

Flow Rate and Recovery Rate

Another important factor that you need to consider is the flow rate of the model and the recovery rate as well. The flow rate is the amount of water flowing out of the heater in a minute. It is usually rated as gallons per minute.

Having a higher flow rate will allow you to connect multiple faucets in your home. On the other hand, the recovery rate refers to the time taken by the heater to heat the cold water and then allow it to flow. Having a higher recovery rate is thus very important when it comes to higher altitudes.

Storage Space and Installation

When you are about to install a 4-gallon water heater with a tank, it is going to take up a high space. This is mainly because it has a large tank and the size of the heater is initially big.

So before you buy the product, you need to measure up the space available on the walls of your installation area. Another factor that you need to consider is the installation options of the heater. Make sure that it is wall mountable and know about the pipes for installation as well.

First Hour Rating

The first-hour rating of the water heater is based on the time it takes to produce hot water according to the desired temperature that you need. Having a better first-hour rating means the product is viable enough to deliver you a faster rate of hot water from the product. The rule is simple – the faster you get the hot water from the product, the better it can get for the heater. You can check more details about the FHR from the manufacturer.

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 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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There are a lot of advantages when it comes to choosing the 40 Gallon Gas Water heater. These heaters are specifically made to give you the upper hand when it comes to using the product regularly. Below, I have listed some of the benefits which you can get while using the 40 Gallon Gas Water Heaters over the electric heaters. 

1. Installation

When it comes to the benefits, there can be nothing easier than installing gas water heaters. The electrical heaters require more configurations from the PCB board to set up the heating element. However, in the case of the 40 Gallon Gas Water Heaters, it is not the same. In fact, it may take up less time to set up.

Thus installation is much easier when it comes to gas water heaters. All that you need to do is to call a plumbing expert who will do the job of constructing the drainage pipe. Thus, the price for the installation of a gas water heater is much less than that of electric-based heaters.

2. Running Cost

The 40 Gallon Gas Water heater does run with the help of either Propane or Natural Gas. Since the working mechanism of the heater is to only ignite when the water is flowing, it cuts down the costs a lot when I compare the costs with the electric heaters. When the temperature is low and you need to adjust the thermostat to increase the ignition, the electricity consumption is much higher.

Comparatively, the consumption of gas is lower which cuts down the average running costs. Moreover, gas purchases are only one time comparatively; using natural gas will save up a lot of money.

3. Efficiency

The efficiency of the electric heaters is quite decent when it comes to small requirements. This is mainly because most of the insulators are present near the outflow pipe. But, in the case of gas water heaters, the efficiency is much higher. Thus the work progress of any gas heater is much more efficient than any electric heater.

Apart from this, the gas consumption is much lower than the electric ignition. This makes gas-based heaters to be much more efficient than most other heaters available. If you require heavy water use, having a 40 Gallon Gas Water Heater can be highly beneficial for your needs.

4. No Heat Loss

One of the major benefits of using a 40 Gallon Gas Water Heater is that it has the least energy consumption when it comes to daily usage. To heat hot water in large quantities, the electrical water heater uses high power consumption. This will allow you to get the highest grade for the heating element when it matters the most.

However, because of the technology, the 40 Gal Water Heater allows you to get proper results at the earliest and without any delays at all. 

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 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-40 ProMax Plus High Efficiency Gas Water Heater, 40 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

Today, there are ample water heaters available all around you. But choosing the best one out of them is indeed a difficult task. There are so many parameters to consider and so many products to choose from. If you are looking for the best 40 Gallon Gas Water Heaters available for you, this buying guide will help you to find out the best results.

We have mentioned a detailed review of all 5 products available and included the Editor’s Pick below. You can look for the reviews and then the buying guide if you want to pick the right product. Do mention below the product that you have liked the most.

We have spent hours of research on finding the best products available. There are several factors that you need to consider and sort out the best product. However, you can also follow this buying guide and complete posts on 50-gallon gas water heater reviews.

When you are looking for an ideal Gallon Gas Water Heater, you should always keep several factors in mind. Choosing the best product is not easy and it may take up hours of research to get the best results for you. Based on these parameters, you can opt to choose the best 50 Gallon Gas Water Heater that is available for you.

Considering every factor is important if you want to buy a product with low maintenance and for the long run. You can check the details of every factor mentioned below to know all about the Factors to look for in a 50 Gallon Gas Water Heater.

1. Energy Efficient

When it comes to choosing the ideal water heater for your needs, the first factor that you need to consider is energy efficiency. The energy efficiency of any product depends on the amount of energy that is consumed and the energy that is being converted to heat the water.

Most of the manufacturers today come with the latest and updated technology and features. Since the water stored inside the storage tanks tends to cool down after a certain period, the tank needs to be heated at certain intervals.

This is the reason why energy efficiency is such an important factor to consider. However, in certain cases, gas-based heaters are much more energy-efficient than regular electric-based models. 

2. FHR

The FHR or the First Hour Rating is also another important factor for you to consider. If you are using any water heater, you may expect it to work instantly and without much delay. Here, the FHR can be considered. The FHR is a measurement that is done according to the capacity and productivity of the heater.

You can always look for the FHR values before choosing the ideal water heater for your needs. The higher the value of the FHR is, the lesser time it will take to heat the water. This also increases the chances of productivity allowing you to get more heated water in the shortest time.

So the higher the FHR is, the better it will be for your heater tank. So try to pick up a product that will have a high FHR rating to give you the optimum results.

3. Size and Storage

If you are choosing any 50 Gallon Gas Water Heater, it is evident that the heater includes a large storage tank. The tank is quite big enough to hold 50 gallons of hot water. Apart from this, the heaters also include a decent heating element and also internal components.

They all eat up a decent space inside the heater. So it is quite evident that the 50 Gallon Gas Water Heater you choose will require a lot of space for installation. Moreover, storing the heater in any other location will require you to leave a wide space for free.

So before you buy any product, you need to measure the dimensions and space available on the wall. Make sure that the product fits into the allocated space available. 

4. Durable and Materials

If you are purchasing a new 50 Gallon Gas Water Heater, you would want a product that is made up of high-end materials. There are several products available in the local market that are available at a low price and also have low-grade materials fitted in.

So even if you do not stay in a highly contaminated zone, the internal component of the heater tends to form rust and limestone. If you live in an area that has hard water, using such a heater may become dangerous for you.

So try to pick up a 50 Gallon Gas Water Heater that will have proper stainless steel tank materials. They support a longer life of the heater while preventing it from forming any type of rust and sediment.

5. Ignition

The next factor that you must always keep in mind is the ignition and the fuel that is being consumed. We all know that 50 Gallon Gas Water Heaters can emit a certain amount of NOx that is harmful to the air. However, it also depends on the gas ignition and the type of fuel that is being consumed.

Two main types of gas-based fuel are being consumed which include Propane Gas and also Natural Gas. There may also be some models that will have low consumption of geothermal energy. Depending on the fuel, the performance of the heater may vary.

Apart from this, the cost of fuel may also affect the daily running charges. So you can choose any fuel type according to the emission and the fuel costs.

6. Tank vs Tankless Water Heater

You first need to know what type of water heater you want to choose the best. You can either go for a traditional tank top water heater or tankless. Both of them have their pros and cons.

Tank water heaters are larger in size and require a lot of space to get installed properly. On the other hand, tankless water heaters are smaller and save you extra room for other stuff.

If you use a tank top, you know exactly how much hot water you could get to use. However, if you forget it, you may run out of water suddenly during a shower if your tank is empty.

On the flip side, there is always hot water flow in a tankless water heater. It doesn’t hold any water but gives you instant hot water flow, ready to use whenever you want.

Tank water heaters are cheaper in many aspects (installation, product, servicing) than tankless water heaters. Tankless could be pricier as a product with installation, but it saves you a lot of gas as it only heats the water when you need it.

7. Installation

Another important factor for you to consider is the installation and also maintenance. The 50 Gallon Gas Water Heater consumes more electricity than any regular tankless water heater. This is mainly because of the high flow capacity and the performance of the heater.

So you need to make sure that it gets an upgraded power supply from the power source. Apart from this, you also need to do the plumbing before the installation. Make sure that you have the dimensions of the heater that will help you to install the product easily.

Apart from this, the next factor that you need to keep in mind is the option of having proper maintenance. Make sure that the product is easy to assemble that will allow you to clean the interior components without any difficulties.

8. Safety

The safety of any electronic device must always be checked before purchasing. There are several safety features that you can consider like overheat protection, auto-shutoff valve, adjustable thermostat control, and even the Temperature and Pressure Release valves.

Each of the safety features is very important when you are purchasing a water heater for your home or your commercial use. These safety features are specifically meant to release pressure and prevent any type of short circuit or overheating in the heater.

With the help of such safety features, it becomes easy for anyone to get the ideal heaters for their needs. So if you have children in your home, having such features are very important for you.

A.O. Smith XCR-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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Having a 50-gallon water heater may give you multiple advantages over other heaters. Since it is powered by a gas unit, it has several specifications that make a 50-gallon gas water heater to be much more advanced than others.

• Instant Heating Technology

One of the biggest advantages of using this heater is the instant heating technology that will help you to start receiving hot water. The time delay for an electric-based system is much more than the gas water heater.

As a result, you can get faster hot water from the gas heater and you won’t even have to wait for a longer time. This will help you to connect multiple faucets and receive water instantly. It will be sufficient to provide you with hot water for the whole family.

• Low Energy Consumption

When you compare both electric and gas-based heaters, you can understand the difference between the energy consumption of these products. The electric-based units are designed to consume more electricity because that is the only procedure for ignition.

Overall, gas-based heaters consume 30 percent lower electricity than that electric-based models. It will also save you a lot of money while running every month.

• Efficiency

The efficiency rate of electric-based heaters comes to around 60 percent. If you compare even the best heaters all over the world! On the other hand, there are a lot more benefits to choosing propane-based heaters.

The efficiency rating of the 50-gallon gas heater is almost 90 percent which is much higher than that of the electric version models. Most of the propane-based models are more efficient and have a higher energy rating than the other models.

• Operates in Blackouts

If you are using an electric-based model, it will constantly require an electricity supply to keep on operating. So if there is no power supply in your home or commercial place the heaters will not work at all.

However, if you are using a 50-gallon gas water heater, it is ignited because of propane gas. This does not require any external electricity supply to run. So you can be assured that the heater will continue operating even during the blackout.

• Environmental Friendly

Not many heaters come with the most eco-friendly gasses and operations. Most of them have higher NOx emissions that can affect the surroundings around them. The 50-Gallon gas water heater is run on propane gas which makes it much safer to run.

It is specially manufactured to reduce the amount of NOx formation and also keeps it safe for use. You can trust any of the 50-Gallon gas water heaters from A.O Smith to deliver you a safe and fast performance.

• Convenient

One of the major benefits of having a 50-gallon water heater is that it offers you a safe choice and a convenient run. To be fair, propane tanks are much better than that gasoline tanks and they are better to ignite. Moreover, they are far easier to install in your home if you already have a gas line.

1. Bradford White BWC RE350T6

Right after looking at our listing of recommended electric water heaters, we decided to pick an item from Bradford White, which is well-known for its value and high-class design. Let us take a look at what a great deal we picked. 

Stackable, and able to withstand the elements, this water heater is made of stainless steel sheet metal. Inside, heavier non-CFC foam insulation maintains hot water for several weeks, and an offer of Protective Vitraglas lining is able to generate easier repairs. On that account, the magnesium rod further reduces the likelihood of corrosion. 

Now we have quite a few more details about this water heater. The two major components draw power at a wattage of 4500. Since it’s not a simultaneous heater, you can just expect a single element running at any given moment. 

Furthermore, the manufacturer also thoroughly equipped the water heater with its highly praised Hydrojet technology, which protects users from a sludge buildup within the heater’s tank.

READ MORE: Best 40-Gallon Gas Water Heater

2. Rheem MR50245 Marathon Tall Heater

The Rheem MR50245 Marathon Tall Heater has a decent body structure that is made up of efficient materials. We found that the tank has a stainless steel coating that prevents it from any type of rust formation.

The product includes a thermostat that can be easily adjustable. The default temperature is set at a comfort level that you can easily change according to the weather. You simply have to rotate the dial.

We found that the product has a decent efficiency of 0.94. This is quite decent when it comes to converting efficient levels of heat. It can easily recover at 20 GPH.

What we liked the most about the product is the easy-to-maintain option. We found the Rheem MR50245 Marathon Tall Heater to have easy installation options that allow a great result for using the product.

3. A.O. Smith XCR-50 ProMax Plus

The one thing that we loved the most about the A.O. Smith XCR-50 ProMax Plus is the option of the blue glass coating. This coating is delicate and helps you to get a proper rust-free tank.

We found that the product includes a self-powered gas valve. This feature is very unique and it allows the heater to automatically start igniting to heat the water.

Furthermore, A.O. Smith XCR-50 ProMax Plus includes a diffuser dip. This feature is helpful for you to reduce the amount of sediment buildup. So it is easy to clean the heater quickly.

What we liked the most about the product is the presence of all the safety features. In fact, A.O. Smith XCR-50 ProMax Plus includes the regulations set by the NAECA.

4. A.O. Smith GPDT-50 ProMax 

Another tremendous edition from the A.O. Smith. This time, we have a member from the legendary ProMax series. Even though this series has some of the most expensive models, the convenience and reliability will be worth your investment indeed. 

And, of course, you’ll enjoy all the latest features offered by the ProMax series. First up, This water heater features an enclosed chimney, resulting in the products of combustion passing outward and air entering. 

The Open Combustion Chamber and Coaxial Venting System allow heat to move back into the system, thus eliminating the necessity for electric power for this process.

Its whole tank is protected from shocks due to the metal packed with the CoreGuard magnesium anode rod and Judaene protective center component.

As usual, it comes with its patented DynaClean system. This system offers vortex stirring that drastically reduces mineral accumulations, enhancing output and energy efficiency.

Another advantage to the heater is its tiny microprocessor, which adjusts the burner’s efficiency and contributes to additional comfort by lowering the burning time.

5. AO Smith 50 Gallon 40,000 BTU ProLine Power Vent

It could be seen that this hot water heater looks much like any other heater on the market; however, a closer look reveals the back cover of the heating unit, which allows the heater to vent into a great number of areas in an incredibly efficient way.

This natural gas water heater can be configured in three distinct directions, providing you with the versatility you need for the ideal installation. For best results, this water heater is great for houses with an existing fireplace. If not, you can always route the vent toward a wall section.

Its first-hour running rate of 96 gallons is another notable aspect. You can easily trust this company to deliver lasting low consumption with regard to your water heating. As long as you make careful use of this water heater, you should be able to reduce your operating costs every year.

Seeing the centuries-old Dynaclean II and CoreGard technologies have become a part of this unit is quite pleasing. The storage tank boasts strong corrosion resistance that exhibits durability. It comes with a vertical dip tube that extends to the base of the tank so that the hot water cannot disrupt the cold air above.

A.O. Smith XCR-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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6. Bradford White BWC RE350T6

The Bradford White BWC RE350T6 includes a compact body that is decent in size. So it is never a problem for anyone to install the product and keep using it. 

We found that the product has a protective rod for regular heating. This rod is treated with the help of a magnesium anode that prevents the formation of limestone.

Furthermore, we liked the option of high energy ratings in the product. It has an efficiency of 0.95 which is great in terms of conversion and regular use. 

The Bradford White BWC RE350T6 can easily work with a pressure of 150 PSI. So even if you stay on the top floor where the air pressure is less, you will never have to worry about the hot water.

Bradford White BWC RE350T6-1NCWW 50GAL 240V

• Includes 4500 watt elements
• Non-simultaneous
• Protective magnesium anode rod - provides added protection against corrosion for long trouble-free service
• Package Dimensions: 23.0" L x 23.0" W x 61.0" H

$759.99

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7. A.O. Smith GCR-50 ProMax Plus

The one that we liked the most about the A.O. Smith GCR-50 ProMax Plus is the presence of anti-corrosion materials. It has a proper diamond glass coating that can prevent any limestone formation.

We found that the product includes PEX polymer. This can always maximize hot water output. Moreover, because of this feature, you can allow the water inside the heater to stay warm for longer hours.

The A.O. Smith GCR-50 ProMax Plus has a faster heating response because of the high-efficiency rate. This allows less energy to be wasted keeping the environment friendly.

Moreover, the product has a self-power mechanism. This is very useful when you are using the heater for a very long time and you still need a hot water supply. 

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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A.O. Smith GCG-50 ProMax Tall 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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8. Westinghouse WGR060NG076 Gas Heater

The faux stainless steel material inside the heater can give a pleasant look. Because of this material, it also becomes quite durable to use the product for a long. The build-up is quite sturdy and decent.

This product features a 97% thermal efficiency included with the product. Because of this, it always consumes low electricity and has high efficiency.

The best part of using the Westinghouse WGR060NG076 Gas Heater is that all the users can enjoy long 140-gallons of first-hour rating. Because of this, it always ensures a high speed of flow.

It features PVC Tee with Screens that can provide high-temperature control. With a digital thermostat, it becomes easy to control the heating element. There are also multiple buttons present for controls.

Westinghouse WGR060NG076 97-Percent High-Efficiency Gas Water Heater with Natural Gas, 60 gallon

• Faux stainless steel finish provides an aesthetically pleasing look
• 60 gallon provides hot water for household of 5 or more people
• 10 year limited warranty on tanks when registered online (default 7 year warranty); 1 year parts
• 97% thermal efficiency
• 140 GPH first hour delivery

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9. AO Smith GPVT-50 Residential Gas Heater

This product comes with an easy installation process that can come with the best options available. The product features 2 dip tubes for embedded safety features.

The AO Smith GPVT-50 Residential Gas Heater comes with a rotatable blower outlet that can provide great support to the product. The interior is supported with core stainless steel.

It includes a decent natural gas input of 50000BTU/Hour. Though it is a bit high when it comes to initial consumption, at the same time, it is still efficient for regular use.

The most interesting part of using the AO Smith GPVT-50 Residential Gas Heater is the high recovery rate of 50 gallons for every 90 degrees Fahrenheit rise.

AO Smith GPVT-50 Residential Natural Gas Water Heater

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10. A.O. Smith ENS-50 ProMax Heater

The A.O. Smith ENS-50 comes with Prema Glass coating technology that allows the tank to be free from corrosion. Because of the glass material, the debris will not stick to the wall of the tank for long and it will flow out.

This product comes with a CoreGuard anode rod. The advantage of having such an anode rod is that it has a stainless steel core. This tends to serve you better than any other steel-based anode rod when it comes to heating and utilizing.

Coming to the internal materials of the product, each of the major components like the heating element and others is tamper-resistant. Moreover, the brass drain valve is good to conduct heat transfer. It also features PEX cross-linked polymer that can be good for any long-lasting heater.

A.O. Smith ENS-50 ProMax Short Electric Water Heater, 50 gal

• Permaglas glass coating protects steel tank from corrosion and maximizes tank life
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing hot water output; made from long-lasting PEX cross-linked polymer
• CoreGard anode rode aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes
• Durable, tamper-resistant brass drain valve
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

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11. A.O. Smith GPVL-50 ProMax Heater

The A.O. Smith GPVL-50 comes with a 3-position rotatable blower that makes it much more reliable and stable to use. Because of the rotatable blower, it comes with flexible connectivity and allows you to get an ideal solution.

This product features a complete electronic-gas controller. To help you with adjusting the product, you can get precise temperature control. There is an LED control light display that accurately shows you the current temperature.

The one feature that impressed me the most is the Dynaclean II dip tube. It is one of the most advanced platforms that keep track of the water pressure and minimizes the cold water regions. You can rely on the hot surface igniters as well.

A.O. Smith GPVL-50 ProMax Power Vent Gas Water Heater, 50 gal

• Features an exclusive 3-position rotatable blower outlet which adds flexibility
• Dynaclean II dip tube optimizes inlet water pressure to minimize cold water regions within the tank
• State-of-the-art electronic gas control provides more precise temperature control; LED control light displays operation status information
• Hot-surface igniter is more robust and reliable than standing pilot, and reduces energy consumption
• 2-inch, thick, environmentally-friendly foam insulation reduces the amount of heat loss and contributes to overall energy efficiency

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While we created this guide on the best 50 Gallon Gas Water Heater available in the market today, we went through several products. Needless to say, there was a handful that caught our eyes from the very first look. So it becomes a difficult choice for us to pick out the best product available.

However, we found that A.O. Smith XCR-50 ProMax Plus could be the best choice to feature. Several features entitled the product to be our Editor’s Choice.

• The product features a blue diamond glass coating. This can provide a long-lasting material for the heater. With the industry-graded standard glass lining, this can be a great purchase.
• We found that the product meets all the safety regulations of the NAECA. So it has all the essential features that make the heater safe under extreme weather conditions.
• Moreover, we found that the product has a Dynaclean diffuser feature. This feature is specifically built that allows the heater to reduce the lime and sediment buildup. This can increase hot water output.
• The one thing that we liked the most about the product is the internal microprocessor. This allows a continuous flow of hot water without any stoppage.

There are also several features available for the A.O. Smith XCR-50 ProMax Plus that you can easily check above and know more about. You can check for the complete review mentioned above.

A.O. Smith XCR-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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We hope that by going through the buying guide and 50-gallon gas water heater reviews we have helped you to pick the best product available. However, several products are available in the market today from where you can choose any product. If you are having difficulties in choosing the ideal product, you can easily follow the entire buying guide.

Apart from the top 5 products, you can also have a look at the editor’s pick mentioned at the top to know all about the best product. Here, you can find all the details mentioned about the product that will help you to know all about the Best 50 Gallon Gas Water Heater available in the market today.

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A.O. Smith XCR-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