Best 50 gallon gas water heater review of 2021

Among the different types of water heaters, the best 50 gallon gas water heater is very convenient to use. Moreover, gas water heaters are capable of meeting the demand for hot water just on the go. So, water heaters have secured an important place in the list of our daily appliances.

As water heaters do not need any extra tank for its storage, it saves a lot of space in your home. Besides, the gas water heaters run on natural gas. So, it saves a handful amount of electric bills at the end of the month.

However, there are varieties of gas water heaters available in the market. In order to make the task a little bit easier for you, we have selected some of the best water heaters out there. So, you can choose the best 50 gallon gas water heater for you, after all the things considered.

Review: Best 50 Gallon Gas Water Heater

We have already searched high, low, and medium countless user reviews. So, now we have trust that we have discovered the best 50 gallon gas water heater from the current market.

Let’s proceed.

1. A.O Smith GPVL-50 Promax Gas Water Heater

best 50 gallon gas water heater


If you are viewing for a powerful gas water heater for your household, you can blindly select this heater. The A.O Smith GPVL- vent gas water heater is the best high efficiency 50 gallon water heaters.

The heater comes with a large 50-gallon water tank along with 40,000 BTU (British thermal unit) burners. As a result, it is competent in providing enough hot water during the shower for large families. However, this heater is energy star certified.

The heater runs on a warm exterior ignitor. This is stronger and more powerful than regular ignitors. Moreover, it also minimizes energy usage. Additionally, this heater is featured with a low rotator outlet. It gives entrance to turn the channel and healthy it in the desired situation.

In order to minimize heat loss, 2-inch-thick foam insulation is used. It is environment friendly and makes the heater more efficient as well. Furthermore, to maximize the inlet water pressure and to minimize the cold-water zones within the tank Dynaclean II dip tube is used here.


  • The heater maintains top-quality.
  • The venting capacity is up to 40 feet.
  • The burner turns off automatically in the presence of flammable vapors..


  • It is quite expensive.
  • It produces noise from the exhaust fan.

2. RHEEM Marathon Electric Water Heater

RHEEM water heater


When you are living in high altitudes or close to the sea and suffer from the salty air, this heater is the best 50 gallon gas water heater suited for you. The heater weighs 100 pounds. The Rheem water heater is made with non-metallic parts. So, it is lightweight but strong and durable.

The inner layer of the heater is tightly made with layers of fiberglass wound. This reduces energy consumption. Moreover, it keeps the heater warm even in the coldest weather. Again, the outer layer is made with polyethylene molding. So, it is free from scratching or denting.

The heater is featured with a recessed copper drain valve, which is extremely durable. Moreover, to prevent dry-firing of the electrical parts, the heater is featured with an insulated core. So, during low water levels, the electrical parts are not damaged.

Additionally, this Rheem 50-gallon lowboy electric water heater is featured with a high recovery rate of 20-gallon water at 90-degree GPH. Furthermore, it has an efficiency of 0.90-0.94 EF. However, the tank is smoothly made with polybutene.


  • This comes with a limited lifetime warranty on tanks along with a 6-years parts warranty.
  • Made with non-metallic parts, so free from rust.
  • Performs well at high altitudes or close to the seawater.


  • It is costly.
  • Not durable enough.

3. A.O Smith XCR-50 Promax Plus Gas Water Heater

gas water heater


If you’re looking for a heater with maximum durability, you can go for this one. The A.O Smith XCR water heater is the best 50 gallon gas water heater that is covered with blue color diamond glass. Therefore, it is anti to corrosion and rust. So, it enhances the longevity of the heater.

This heater is featured with a Dynaclean diffuser dip tube, which reduces the formation of sediment and lime in its passage. As a result, it prevents any blockage and ensures maximum water output. Moreover, the tube is built from PEX cross-linked polymer, ensuring maximum longevity.

Furthermore, the gas valve used here is self-powered. It uses a thermopile to produce the power needed to operate electronic gas control. So, no extra power is needed. Moreover, it uses an internal microprocessor for better sensing and quicker heating feedback.

Finally, this water heater is wonderful for a large-sized family. It is capable of supplying an adequate amount of hot water for a large family. However, it meets all the criteria of the National Appliance Energy Conservation Act (NAECA).


  • The installation procedure is easy.
  • It comes with a 10-year limited tank warranty and a 6-year limited parts warranty.
  • Corrosion-free structure.


  • The product is expensive.

4. Bradford White Water Heater

 Bradford white water heater


The Bradford white water heater is specially built for small households. The recovery rate of this heater is about 21 gallons of water at a GPH of 90 degrees. It weighs about 150 pounds and measures only 4 inches in height.

The heater uses an anode rod coated with magnesium. Thus, it ensures protection against corrosion and gives longer life. Moreover, the inner part is insulated with a Vitra glass-ceramic. It can endure temperatures up to 1600-degrees and keeps the tank extremely safe from heated corrosion.

Furthermore, the 50-gallon short electric water heater comes with a hydro jet feature, which does not allow any sediment in the passage. It also sustains the temperature of the water heater. Additionally, the heater comes with an auto safety control system and copper gas valve.

For minimizing noises and avoiding heat loss, this heater is featured with heat traps. The water heating is even faster due to dual heating elements. Besides, the operating feature allows checking whether one or both the elements are working to heat up the water.


  • Suitable for small households or offices.
  • Works great as a professional heater.
  • Hydrojet technology for sediment reduction.


  • Price is expensive.
  • The heater is slightly heavy.

5. A.O Smith GCG-50 Promax Gas Water Heater

Promax water heater


The model A.O Smith GCG-50 is a perfect choice for large households. Like all other water heaters from A.O smith, the GCG-50 model is also coated with blue diamond glass. The glass lining is industry-standard. Hence it provides effective protection against rust formation.

This heater does not require any additional power to run the electronic gas control. Rather, it is powered by an electronic gas valve. The automatic gas control device uses a thermopile to create power. However, electronic gas control comes with an LED status indicator.

The heater is attributed with an interior microprocessor. This provides advanced functioning parameters and strict differentials. So, the sensing is accurate, and heating feedback is quicker. The stainless-steel made anode rode ensures the protection and longevity of the tank.

Additionally, the heater comes with a Dynaclean diffuser dip tube. It serves to minimize the lime and sediment that forms in the passage. As a result, it ensures proper water outflow with maximum results. The tube is built from PEX cross-linked polymer, which has high endurance.


  • Highly effective and safe to drink water for even a large family.
  • Have a long vent of 40 feet.
  • It meets the demands of NAECA’s standards.


  • Not long-lasting.

6. A.O Smith Residential Gas Water Heater

Residential gas water heater


The A.O Smith GDHE 50 NG residential gas water heater is not highly recommended like the above-mentioned models. Yet it has some superb features. The blower outlet of this heater is rotatable and can be fitted in 3 positions. So, it is elastic plus easy to set up.

The aluminum anode rod is made with stainless steel. So, it cuts off the tension of rust formation. Moreover, it provides maximum protection to the tank so that it does not wear off due to corrosion. As a result, it ensures the tank to be long lasting.

Where the other water heaters use plastic drain valve, this model uses brass made drain valve. Hence, it is stronger than the usual valve. Moreover, it provides enough resistance to tampering. Thus, it makes the 50-gallon short gas water heater more durable.

This heater is featured with a Dynaclean II dip tube. It increases the inlet water pressure.  Moreover, it comes with a self-cleaning option, which minimizes the sediment which settles down at the base of the tank. So, it can provide high water flow without any blockage.


  • Energy efficiency is higher.
  • Anode rods are rust-resistant.
  • Long-lasting drain valve.


  • Parts need numerous replacements.
  • The installation procedure is quite bothersome.

7. Reliance Water Heater

 Reliance heater


If your house member is more than five or six, you have to pay attention to the high efficient 50 gallon water heater. In this sense, you can think for this Reliance water heater what you actually need.

It is a high-efficiency 50 gallon short gas water heater that is constructed with great features, both durability, and lightweight. The body of this heater is made from stainless steel materials that make it so reliable and trustable with full safety.

Though it is powered by gas, it also has minimal nitrogen oxide emission. So, thanks to two-inch-thick insulation and the tank stores heat, removing heat loss using less energy. It includes a fitted combustion controlling system that lets for a minimal level of nitrogen oxide.


  • Budget-friendly.
  • Lightweight and easy to use plus clean.
  • Minimal nitrogen oxide emission.
  • High-effective rating.


  • Ignition problem.
  • Make a pretty loud sound.

See also: Best 110 volt tankless water heater of 2021

8. A.O Smith GCR-50 Promax Plus Gas Water Heater

Pro max plus gas heater


If you are searching for a water heater that will cut down your electricity bills and will last long, this GCR-50 model is definitely a worthy product for you. Like all other models, the A.O Smith have not compromised a single bit.

For rust and corrosion-free use, this heater is covered with diamond blue glass. This is an industry-based glass lining that effectively protects the heater from corrosion. In addition to this, the dynaclean diffuser dip tube effectively reduces the sediment formation inside the tank.

Moreover, this 50 gallon water heater gas is featured with an electronic gas valve. Furthermore, the valve generates power by using a thermopile. Besides, the power is capable of controlling the electronic gas control. As a result, no external energy is required.

Again, the A.O Smith GCR-50 water heater comes with an internal microprocessor. This helps the user to get highly tight differentials and updated operating parameters. For this, the user is able to get a very fast heating response with correct sensing.


  • Comes with a limited 6-year tank and parts warranty.
  • Fulfills the regulations and standards set by NAECA.
  • The two-way combustion system works great for indoor ventilation.


  • Fire accidents may happen if not installed and used properly.

9. Rheem Performance Platinum Water Heater

Platinum water heater


For medium level household, the Rheem performance Platinum is an amazing 50 gallon short electric water heater. This water heater supplies ample water at a lower cost than any other older models.

A simple button for push ignition system prepares for safety startups when the lifespan of the tank is raised by the premium grade anode rod. This water heater comes with a 3-years home labor warranty with 12-years limited warranty for the tank and other parts.

This water heater offers fantastic high-efficiency for most homes. It is great for any household works. You don’t need to think about another heater. 


  • Long-lasting.
  • Great for good performance.
  • Affordable.
  • Easy to use.


  • Make a little bit of noise.

10. Westinghouse High-Efficiency Gas Water Heater

Westinghouse gas water heater


The Westinghouse water heaters are well-known for their advanced technology. The model WGR060NG076 97-Percent from the Westinghouse is a high efficiency tankless water heater that includes modern technology.  So, anyone looking for a heater with cutting edge tech can opt for this.

The build quality of this heater is also superb. The tank comes in stainless steel. Moreover, the heater is featured with a heat exchanger. As a result of this arrangement, the water heater is highly challenging to corrosion. Moreover, the heater is equipped with the latest electronics.

This heater comes with an LCD display panel. The heater also features an “Eco-friendly” mode, which can be changed easily from the display panel. With the help of the eco mode, the amount of fuel consumption can be lessening, effectively saving the cost.

The ultra-high efficiency gas water heater uses a two-inch-thick insulator, which traps the heat and avoids heat loss. Besides, an amazing feature of this heater is that it emits very less nitrogen oxide into the environment. Thanks to the equipped combustion control system for this.


  • Built with stainless steel ensuring rust free and longer lifetime.
  • Lightweight so easy to install.
  • Comes with an LCD display.
  • The thermal efficiency of 97%.


  • Produces noise.

11. A.O Smith ENS-50 Water Heater

Smith water heater


If you are in need of a high efficiency electric water heater for your residence along with professional-grade service, the A.O Smith ENS-50-version is the best option for you. Like all other models, the manufacturer has not compromised with the quality of this heater.

The water heater is exclusively featured with the A.O Smiths special Coreguard technology. The outer layer of this heater is coated with aluminum for better life expectancy. It again guards the core of the tank, which is made with stainless steel.

Moreover, beneath the aluminum layer, another coating of a diamond blue glass line is provided. This provides additional protection of the heater against corrosion. In addition to it, a heavy-duty brass valve is equipped with the heater. It allows us to maintain and drain the heater comfortably.

Again, the anode rod has an important role in determining the lifetime of the heater. Keeping this in mind, a stainless steel made anode rod is used in this heater. As a result, the tank gets protection against rust, which ensures higher longevity of the tank.


  • It comes with a 6-years tank and parts warranty.
  • It serves the finest GPH at 90 degrees.
  • Excellent build quality.


  • Have some leakage issues.
  • Requires professional installation.

12. A.O Smith ENT-50T Water Heater

A.O smith


Those of you are in need of a professional-grade water heater at your home; this heater can definitely meet your demand. With excellent build design, the A.O Smith ENT-50T water heater comes with many advanced technologies that will undoubtedly meet your purpose.

The heater comes with a coating of the permaglas glass. This coating makes the tank more durable by giving protection against rust. So, it is resistant to any kind of corrosion. As a result, the heater gets a longer life period.

For making the heater much more durable and stronger, it is featured with an aluminum anode rod. However, the road is coated with stainless steel. So, it gives better performance than a usual anode rod and keeps the tank rust-free.

The Dynaclean diffuser dip tube is built with PEX cross-linked polymer. Hence it lasts longer. Moreover, it minimizes the lime and sediment formation at the bottom. So, water flow is maximized. Also, for easy cleaning and maintenance, a brass drain valve is provided.


  • Meets all the standards and regulations of NAECA.
  • Comes with a 6-year limited tank and parts warranty.
  • Easy installation.


  • The price is a bit high.

13. A.O Smith GCR-50LP Water Heater

water heater


The A.O Smith GCR-50LP water heater works great when it comes to the fact of a longer lifetime and less electricity consumption. All the models of A.O water heaters have a quite similar type of construction. But there are some minor changes among them.

The AO Smith hybrid water heater is featured with an industry-standard glass lining. Moreover, it is enveloped with a diamond blue glass. It is challenging sufficient to rust and corrosion. This make the most of the life span of the water heater tank.

The 50-gallon lowboy gas water heater is equipped with an internal microprocessor. It provides compact differentials and operating variables, which are more advanced. So, it has the capacity for perfect heat sense and quick heating response.

The electronic gas valve is designed in such a way that it needs no additional power to operate the electronic gas control. In addition, the heater is very effective against the lime and sediment formation as it uses the Dynaclean diffuser dip tube.


  • Resistant to rust.
  • Have a fast heating response.
  • Fulfills the NAECA standard.
  • Comes with a 6-years limited warranty.


  • Have the possibility of fire hazards if not used properly.

14. Rheem Residential Gas Water Heater

50 gallon water heater


Rheem is a popular manufacturer that makes high efficiency electric water heater using the updated technology. This model is one of the 50 gallon water heater electric that is made like a tank type that uses considering technology.

The unique design lets the heater make hot water with superior energy effectiveness and eligible for rebates. Overall far this is a sturdy water heater that can’t get a good job for keeping the hot water so very hot. So, we suggest this Rheem water heater for your house.


  • Good price for this highly effective hot water.
  • Comes with a 9-years warranty.
  • Easy to install.
  • Great value for money.


  • Make a little bit of noise.

Things to Consider Before Buying Gas Water Heater

Among plenty of manufacturers, it is quite tiresome to select the best hot water heater for the house. The price of the best 50 gallon gas water heater varies among the models. There are cheap gas water heaters, while some are expensive. It’s very confusing to buy the desired for households.

In case you’re changing your old one or setting up a new water heater, there are few things you need to take into consideration. After spending a handful amount of money, you definitely want the expense to be worth it. For this, we are here with some buying tips for you.

  • Tank capacity: The first and foremost thing to keep in mind is the storage capacity of the tank. There are water heaters with different capacities. For instance, 75 gallon gas water heater, 40 gallon electric water heater, and 20 gallon gas water heater.

You must select the tank according to your usage. If you have a family including 4-5 members, you can go for heaters with 40-gallon or 50-gallon tank capacity. Finally, the decision is up to you.

  • High First-Hour Rating: First-Hour rating means how many gallons of water a heater can provide with a full tank during its first hour. The label of the first-hour rating is pasted within the body of the tank. You can find it there. To find out the accurate FHR for your home, you can calculate it from the energy calculating website.
  • High GPM rating:  In the case of tankless water heaters,GPM, or Gallons per minute, is another important factor. It tells you how many gallons the heater can supply within a definite period of time. If you have a big family, you must opt for the heater with a high GPM rating.
  • Tank design: The tank design is a very important factor for the longevity of your hot water heater. Usually, the tanks are more prone to corrosion and rust formation. So, it is better to buy a tank with the anti-rust feature. To avoid this problem, the tanks are now provided with a glass lining.

The glass lining designs of the tank save it from corrosion and enhances the lastingness of the heater. Again, some tanks are built with stainless steel coated with aluminum from the outside, which is also rust-resistant.

  • Anti-sediment feature: The lime and sediment formation at the bottom of the tank reduces the water flow and lowers the life expectancy of the heater. Nowadays, water heaters are equipped with a dip tube, which reduces sediment formation at the bottom; as a result, water flow is not compromised. So, you must buy a heater with the anti-sediment formation feature.
  • Drain valve: Drain valves are essential when it comes to cleaning or maintaining the heater. There are heaters with plastic drain valves. But some heaters come with metallic drain valves, which are extremely durable. Again, they are also resistant free. So, while buying any heater, you must keep this in mind.
  • Durable Anode rod: Anode rod determines the lifetime of the heater. The more period the anode rod will last, the more period your water heater will keep functioning. Anode rods always remain submerged in water. However, metallic anode rods are more prone to corrosion. So, anode rods with stainless steel are the best option to buy.
  • Fire-protection:  When the water heaters do not sense any water around it while running, it can catch fire. Some heaters come with advanced technology that can save your heater from burning even it does not sense any water. Hence, it is a very important safety feature to look for while buying the heater.
  • Digital Display Panel: The digital display is one of the most updated features on the list. It’s very easy to operate from a digital display. You can easily get the temperature, efficiency, and pressure readings from the display of the heater. Some heaters also allow you to set the preferred temperature, which can nicely be done by a digital display panel.
  • Warranty: The last but not the least important thing to consider is the warranty of the tank and other parts. A heater must have a warranty of at least 6-8 years. Otherwise, it is better to avoid that option. Some manufacturers provide a warranty of 10 years plus. So, you should check the warranty period of your heater before buying it.


How long does it take to heat up a water heater?

Generally, the time required to fully heat up a water heater depends upon the recovery time. The recovery time varies from the heater to the heater. It depends upon the BTU or gallon capacity.

But normally, the gas water heaters have less recovery time than electric water heaters. Usually, a newly installed heater takes 40-45 minutes to fully heat up. But if it takes more than 1 hour, then your heater might have some issues.

Is it necessary to use a drain pan under the water heater?

It depends upon the location where you have placed your heater. In some cases, it is highly recommended. Again, sometimes it is not necessary. It is not so surprising that a water heater may sometimes leak due to temperature or pressure failure.

In such cases, if your heater is located inside the closet, the result will be devastating. So, it is always a safe option to use a drain pan that will drain the water leaks out of your house.

What is meant by the Energy Factor in a heater?

The efficiency of the water heater is measured by the Energy Factor. It can be used to make a comparison between water heaters. The water heater with a high Energy Factor consumes less energy and cuts down the electricity costs than a heater with a low energy factor. A highly efficient water heater is determined by its Energy Factor. It saves your money by lowering the bills.


Finally, we are in the last part of our article. We have checked some of the best features and added the above-mentioned heaters to our list. For saving your time, we have also added the pros and cons of each product along with a buying guide. So, you can again judge on your own and buy the best 50 gallon gas water heater by yourself.

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