The 10 Best Rated Gas Water Heater, Tested And Researched

Sherry Peterson By, Sherry Peterson
Rinnai V75iP Non-Condensing Propane Tankless Water Heater
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1. Best Overall: Rinnai V75iP Non-Condensing Propane Tankless Water Heater

Rinnai's V75iP is the most advanced and efficient propane tankless water heater on the market. It offers a smart, durable design, with the original style and professional installation recommended. This water heater has energy-saving heating with a tankless design and a sleek exterior that blends seamlessly into your home. Read Review

2. Runner Up: Eccotemp i12-NG Tankless Water Heater

Eccotemp i12-NG Tankless Water Heater with the least noise possible makes it easy to heat water in your home. Features fully automatic temperature controls with an energy-saving mode and child lock technology, as well as a sleek, modern design. It’s also safe and easy to install. The system requires no venting or plumbing changes, making it great for retrofitting existing homes. Read Review

3. Best Energy Saving: CAMPLUX ENJOY OUTDOOR LIFE Tankless Water Heater

Enjoy your outdoor living in the wintertime with a CAMPLUX ENJOY OUTDOOR LIFE Tankless Water Heater. With an anti-frozen heating mold, it will maintain its temperature to prevent ice or snow from forming and sticking to the pipes. The low nitrogen combustion means that it is more eco-friendly. It is also energy-saving, considerate of anti-scalding protection, and has three simultaneous applications in winter. Read Review

4. Easiest To Install: thermomate Tankless Water Heater

Get instant hot water on demand with the Thermomate Tankless Water Heater. With its sleek design and multi-safety protection, this tankless water heater is easy to install. The compact and space-saving design makes it perfect for any home or office. Read Review

5. Best Compact: CAMPLUX ENJOY OUTDOOR LIFE Portable Water Heater

The CAMPLUX ENJOY OUTDOOR LIFE portable water heater is the perfect solution for heating your outdoor area. It comes with a tankless design that runs on propane, which means no more worries about buying fuel all the time. The compact size and portable design also make it easy to store and take along with you wherever you go. Read Review

When you are renting a home or apartment, it is important to have everything in working order. This means having access to an affordable, effective heating system as well as other utilities like electricity and plumbing that are also functional. To know what type of unit is the best for your situation, you should look at the following factors: The size of your home and the number of people who will be staying there.

How often do people stay at home? How long will they be staying? What are the functions of each room? How old is the home? Are there any special features like a solar water heater or geothermal system? Do you plan to add another family member in the future and how many bedrooms does it have? These are just some essential questions you need to answer before choosing a gas water heater.

You can count on our team of experts who have spent over 22 hours conducting results through 5,984 real customer reviews. Because of this, We came to the conclusion that the best rated gas water heater is Rinnai V75iP Non-Condensing Propane Tankless Water Heater. And Eccotemp i12-NG Tankless Water Heater is another choice for you while keeping the product's quality and functionality.

Our Top Picks

Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit; Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)

Never Run Out of Hot Water with this Compact Propane Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)

Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE180iP model

Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region

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

TOP Choice #2 Eccotemp i12-NG Tankless Water Heater
Our Score:

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)

Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls

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

Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation

TOP Choice #3 CAMPLUX ENJOY OUTDOOR LIFE Tankless Water Heater
Our Score:

Anti-Frozen Heating Mould All Round. The tankless gas water heater will auto heating when the ambient temperature <41 ℉. So you don’t need to wait for heating and no drain after the use.

Low Nitrogen Combustion,Energy Saving. The tankless gas water heater comes with low nitrogen balanced combustion design, v-type stainless steel burner,high heating efficiency up to 89.98 %. The water heater uniform energy efficiency range 0.89-0.92.

Considerate Anti-Scalding Protection-The tankless water heater equipped with anti-scalding function to avoid the problem of excessively high setting temperature (causing burns ) caused by children's wrong operation.Therefore, it is impossible to set a temperature exceeding 122 ℉ under normal working conditions. The water valve needs to be closed to make the water heater in standby status before you set the temperature above 122 ℉.

Direct-Current Frequency Conversion Fan-The propane gas water heater comes with a direct-current frequency conversion fan. The water heater can resist level 8 strong wind and you no need to worry about the water pressure in high floors.

3 Simultaneous Applications In Winter.Camplux advanced 6.86 GPM high capacity flow control propane gas tankless water heater delivers 6.86 gallons per minute of on-demand endless hot water ensures instant hot water for 3-4 persons whole home shower and kitchen at one time.

4 thermomate Tankless Water Heater
Our Score:

[2.5 PSI Water Pressure Startup] Equipped with a magnetic water flow sensor, allowing the unit to work at low water pressure, stable water flowing to meet a wide range of usage for those in water shortage areas, including rural areas, RV's and Boats.

[Easy to Install] Equipped with 1/2" BSP water fittings and manual water temperature controls make it easy to install and use. Please verify it's the right size you need: net weight 10.4lb; size 13.4(L)x4.7(H)x11.6(W); maximum power output 34,000btu/hour (10kW). Work with a 0.4PSI gas regulator (included).

[Multi Safety Protection] Anti-freezing apparatus draining the stock water to avoid damage of freezing under cold areas to the machine itself or in case of a long time no use. Featuring overheating and flameout protection, the gas supply will shut off automatically under unexpectedly flame out or high water temperature over 176 °F.

[Instant Hot Water On Demand] Rated at 1.32 GPM, this water heater provides endless hot water on demand and only as needed, no need to preheat making it more efficient and energy-saving, saving up to 50% on water heating costs. 

[Compact Exquisite Design] Compact and space-saving design with minimal noise output which is portable for outdoors.  A great partner for camping and road trips bringing an amazing hot shower for you when you are camping, hiking, fishing, beaching, etc. Besides, you can also wash your pets with this tankless water heater, or provide hot water for the swimming pool.

Our Score:

3.0 PSI Water Pressure Startup -The portable propane water heater equipped with a magnetic water flow sensor, the tankless water heater can be widely applied for rural areas, RV's and Boats.The portable propane water heater lights when water pressure between 3.0-110 PSI, low water pressure is perfect for campings and remote cabins.

Compact Size,14lbs Portable Design- Weights 14 lbs, this 6L portable water heater is a great partner for camping ,road trips and RV’s. Camplux instant water heater bringing an instahot instant hot water shower for you when you are camping, hiking, fishing, beaching. Besides, you can also wash your pets with this propane tankless water heater, or provide hot water for the swimming pool.

1.58 GPM Instant Water Heater - Rated at 1.58 GPM, this on demand water heater provides endless hot water on demand, it’s more efficient and energy-saving, saving up to 89.98 % on water heating costs.

Multiple Protection Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.

Easy & Safety Installation -It only takes you 5 minutes to get 1.58 gallons per minute of instant hot water. Always check gas leakage before operation.To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless propane water heater will "caught on fire "with improper operation. Please kindly contact Camplux service directly if you have issues .

ENERGY STAR qualified THERMALUX tankless water heaters are highly efficient and use up to 40% less energy than storage water heater models

Flow rates range from 0.5 GPM to 11.1 GPM. This unit can provide up to 11.1 GPM at a 30 degree temperature rise.

THERMALUX is proud to offer homeowners a tankless unit with 93% thermal efficiency

THERMALUX provides a 12-year warranty on the heat exchanger, and a 5-year warranty on service parts

7 AO Smith BTR-200 Tank Type Water Heater
Our Score:
A.O. Smith

Vent Size: 6

Handhole Cleanout

Electronic Ignition

Meets or exceeds the thermal efficiency and/or standby loss requirements

CSA Certified and ASME Rated TandP Relief Valve

3.0 PSI Low Water Pressure-This tankless propane water heater lights when water pressure between 3.0-110 PSI, 3.0 PSI low water pressure is perfect for campings and remote cabins. The tankless gas water heater can be widely applied for rural areas, RV's and Boats.

1.58 GPM On Demand Instant Water - Rated at 1.58 GPM, this on demand water heater provides endless hot water on demand, it’s more efficient and energy-saving, saving up to 50% on water heating costs.

Easy & Safety Installation -It only takes you 5 minutes to get 1.58 gallons per minute of instant hot water. To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.

CSA certified testing standard ensures your safety .Flame failure device, anti-freezing protection and oxygen depletion safety shut-off protection to enjoy more pleasant outdoor shower.

Compact Size,10lbs Portable Design- Weights 14 lbs, this 6L portable water heater is a great partner for camping ,road trips and RV’s. Camplux instant water heater bringing an instahot instant hot water shower for you when you are camping, hiking, fishing, beaching.

Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream

Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary

Instant Heating: ThermaCirc360 technology provides faster hot water with a built-in recirculation pump, timer and thermal bypass valve - ideal for homes without a dedicated return line

Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

Manufactured in Japan

Perfect for light residential and radiant heating applications

Inlet, outlet thermistors for constant temperature monitoring

Product Images, Product Titles, Product Highlights from Amazon Product Advertising API

What to Look For in a best rated gas water heater?

Maybe you should feel overwhelmed by the number of options available to you when it decides to purchase best rated gas water heater in 2023? Visitors can't help but question if a better option is available. Well, we have some key items which will produce positive outcomes while also saving you time & expense.

You need to have an objective view of what you are interested in the product you are looking to buy. To choose a satisfactory best rated gas water heater, the factors related to the product, you need to consider carefully below points.


A lowboy, or shorter water heater might be the best option if you don't have a lot to heat. They are smaller than average and can be used in small homes. You could also consider mini-tank or tankless water heaters. Although gas water heaters are bulky and heavy, it's possible to get smaller models. The size of electric water heaters is generally smaller. If you have limited space, tankless electric water heaters will be the most suitable option.

Tankless Or Tank

A tank water heater stores a set amount of hot water and is ready to be sent to several appliances simultaneously. The tankless heaters heat the water quickly and require less space than water heaters with tanks. One unit might not heat enough water for multiple fixtures simultaneously, so it is possible to purchase multiple water heaters.

Digital Displays

Modern water heaters have digital controls, which allow homeowners to set up the heater to turn off when they are away from home. Although a digital display can increase the initial price of the heater, it also increases the heat efficiency, which ultimately saves money.

Efficiency Rating

Efficiency ratings are a measure of how efficient water heaters actually heat water. An efficiency rating of.70 for hot water heaters means that 70% of energy used by them heat water.
The difference between electricity and gas rates means that this rating doesn't give a good indication of the cost you could expect to pay for the unit. A gas heater with a lower efficiency rating will be more efficient than one that uses electricity. However, gas heaters are mucher than electric ones.
Because they don't have to run constantly to heat water, tankless heaters are significantlyer than storage tanks heaters. A tankless water heater can cut down on your energy bills by up to 40% depending on how much hot water you use. To determine the impact on your budget, it is better to calculate the annual operating cost for the hot water heater.

Gas Or Electric

There are many factors that influence the choice of electric or gas-powered water heaters. These include local utility costs and personal preferences. People who want to save money upfront and those who don't have natural gas in their homes prefer electric water heaters. Gas heaters can be more costly upfront, but they will save you many hundreds of dollars per year depending on the energy cost in your region.

Brass Vs. Plastic Drain Valves

A tank water heater has a drain valve located at the bottom that allows for the proper drainage of the tank. The valves can be used with standard garden hoses and made from brass or polyvinyl chloride (PVC). A brass drain valve is better than using plastic for hot water heaters, as brass is more resilient than plastic.

Anti-Scale Devices

Some companies advertise that they can reduce mineral scale buildup by swirling water. Although scale may reduce the heater's life expectancy, it doesn't mean you have to spend a lot on fancy options. Look for one that comes with a 122023 warranty. This usually includes an element of a greater or lesser thickness.

Venting Needs

Electric water heaters do not require venting, so they can be placed in any place in your home. When they heat up, gas hot water heaters emit carbon monoxide and other harmful gases. These heaters use a ventilation system made up of pipes and conduits that removes these byproducts. Gas heaters require venting, take up more space, and are less suitable for homes than electric water heaters.

Tank Capacity

You should make sure your tank heater has enough hot water storage to provide heat for your entire family. Although tank heaters are capable of heating water at multiple locations simultaneously, they will require more time to heat the water. This could lead to unexpectedly cold showers.


How Do Water Heaters Work?

A tank-style water heater uses a dip tube that has an outlet in the bottom to heat the cold water. The tank's temperature is monitored by an internal thermostat which activates either a heating element, or a burner that warms water to the desired temperature.
Dual heating elements are used in electric water heaters to heat the water. The bottom heating element heats the coldest water faster, while the top one warms the water if it becomes too hot.
A pilot light, or electronic ignition system for gas water heaters ignites the gas that is flowing to a burner. Before shutting off, the burner heats water in the tank until it reaches a desired temperature. The exhaust is then vented outside.
Water heaters that are tankless don't keep water. They heat the water by using either electric or gas heating elements. The temperature of the hot water is a factor in how fast it flows, however most units are capable of providing hot water at a flow rate between 2 and 7 GPM.

What Is The Best Compact Water Heater For Saving Space?

Mini-tank or tankless water heaters are compact and light, which makes them great for small homes that have less space.

How Long Does A Water Heater Last?

Although water heaters come with varying lifespan expectations, many can last for between 8-12 years. Some water heaters can last up to 20 years. Your water quality can make a difference in how long your heater will last. Over time, corrosion can occur from heavy minerals or sediment.
Depending on which model you select, the manufacturer may offer different warranty terms. The most common warranty period is usually between 6 and 9 years.

What Are The Signs Your Hot Water Heater Is Going Out?

A failing water heater can be identified by a series of telltale symptoms, such as banging sounds inside the tank and a decrease in temperature.

Can You Still Shower If Your Water Heater Is Leaking?

You can still take a hot shower even if your water heater is leaking. You can shower even if the leak becomes severe. It will just mean that you won't get hot water.

How Do You Drain A Water Heater?

First, drain the hot water heater by flushing it with water at full pressure. After connecting the drain line, open the drain valve and close it again. The valve will dislodge any sediment, allowing the system to drain faster.
Then, disconnect your water heater from either the electric or gas power supply and shut down the main water supply. Next, disconnect the drain hose from the quick flush and open the drain valve. Once you let air in the tank, water will not flow out. You will need to remove the hot water pipe from the top of the water heater, and then move the pipe to the side. You will see the tank begin to drain.

What Is A Water Heater?

A boiler is often confused with a water heater. What is the difference between a boiler and a water heater? A water heater heats water to be used for showering, cooking, cleaning, or other purposes. The water heater heats cold water coming from the water supply pipe. It then gives you hot water ready to use for washing your clothes or running a faucet. Water heaters use water that's suitable for cleaning and cooking (potable). A boiler, on the other hand is designed to heat your home and heat water from the taps.

Can Water Heaters Explode?

Electric and gas hot water heaters are susceptible to explosions. Explosions are rare, but can be caused by increased pressure in the heater, poor installation or maintenance, failure to set the temperature and relief valve (T & P), gas heaters, flammable liquids, or gas leaks.

Gas Vs Electric Water Heaters: Which Is Right For You?

It's not cheap to install a water heater in your house. This is why it's important that you take some time thinking about how to charge your appliances. First, electric heaters offer the most sustainable option for the environment. If you choose one, it will be a better choice for your planet. Although electric water heaters work better, the price of electricity is higher than that of traditional gas options. You can still use your gas heater even if there is no power, so you have less to worry about during a crisis.

How Often Should I Replace My Water Heater?

According to professionals, your water heater should be replaced every 10 years. A water heater cannot be guaranteed for this long. It is possible that your water heater will need to be replaced sooner than expected.


The buying guide for best rated gas water heater for your requirement is available on the website. It will assist you in determining what to purchase and how much of it to purchase! We hope this article has assisted you in incorporating some neuroscience guidelines into your shopping decision. If you don't find anything in the above list, you can make another purchase with Takagi T-H3-DV-N Condensing High Efficiency Natural Gas.

If some of this sounds intimidating, or if you really want more details on the strategies mentioned in this blog post, please contact us.

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About Sherry Peterson

Sherry Peterson
Sherry Peterson is an editor for Sanford. She has a passion for home gadgets and beautiful design and loves to share her finds with others. Sherry has been working in the publishing industry for over 10 years and is excited to bring her expertise to Sanford's readers.

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