This is the ultimate buyer’s guide to the Best Gas Water Heaters. We’ve listed our top picks, including the Most popular, Top-rated, and Bestselling Products.
After hours of scanning and analyzing the market, using too many factors, we have found the Best Gas Water Heaters of 2022. Check out our ranking below!


Top 20 Best Gas Water Heaters of 2022



Best Gas Water Heaters 2022 (Reviews)


Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with Fahrenheit Digital Display, 3.18 GPM On Demand Water Heater for 2-3 Persons Bathroom Indoor Use,White

$399.99  in stock
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM tankless water heater natural gas delivers 3.18 gallons per minute of on-demand endless hot water ensures constant comfortable instant hot water for 2-3 persons whole house. 3.18-GPM heater is activated by water flow rather than water pressure; Minimum activation water capacity rate: 0.65 GPM-4.8 GPM; Maximum input rating: 82,000 BTUs; Water connection location/size: Bottom/0.5-inch NPT.
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP female to 1/2" NPT male gas connector adapter then you want hook this water heater to natural gas pipe directly.It also comes with 2.3" horizontal vent pipe,ensures efficient power ventilation. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Modern Design,Easy Operation -Trendy and modern design with unique white glassy front panel,easy to control the water temperature with LED touchscreen (Fahrenheit and Celsius switch optional).The compact size on demand water heater saves more space than traditional tanks.
  • Outstanding Features- The Camplux tankless gas water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating efficiency up to 89.98 %; 90°wind isolation design, this tankless natural gas water heater can anti backflow wind in high floors, the S/S 2.36 ” vent pipe exhaust harmful gases quickly.
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.

Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM

$618.19  in stock
4 new from $618.19
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.
  • Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively

TC-Home 10L Instant Hot LPG Water Heater 2.6 GPM Propane Gas Bath House Tankless Boiler Digital

$129.22  in stock
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Gas Type: LPG Liquid Petroleum Gas (PROPANE),Capacity:10L/min (2.6Gal), 25 degrees warm water producing rate
  • SIZE: 13.4"(L) x5.7"(W) x23.2"(H), Working temperature:-8-45℃, Thermal input: 20KW,Thermal efficiency: ≥80%; Cover Material: Cold Rolled Sheet;
  • Temperature rise: 25℃, Minimum working water pressure: 0.025MPa, Gas pressure: 2800Pa, Automatic electric ignition powered by two (2) size 'D' batteries (batteries not included)
  • Gas pipe: G 1/2"; Water Inlet: G1/2'',Water Outlet: G1/2'',Vent Type:4.2" Flue Duct
  • Over water pressure protection function : to automatically decrease pressure under excessive high water pressure.

Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray

$451.41  in stock
6 new from $449.00
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

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

Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

$1,355.49  in stock
2 new from $1,355.49
1 used from $1,850.00
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use indoor only

Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM

$1,910.75  in stock
7 new from $1,854.73
1 used from $1,599.00
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

Rinnai RL75eN Natural Gas Tankless Hot Water Heater, 7.5 GPM

$1,254.51  in stock
5 new from $1,100.00
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance 7.5 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Circ-Logic technology enables recirculation patterns that coincide with your typical habits; Wi-Fi monitoring creates hot water on demand
  • Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor respectively

Rheem RTGH-RH10DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters with Built-in Recirculation, Gray

$1,491.99  in stock
2 used from $1,043.17
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Rheem Prestige RTGH is a series of high efficiency condensing tankless gas water heaters designed for continuous hot water and 180,000 btu
  • With dual stainless steel condensing heat exchanger, Max GPM of 11 (on 180K BTU models)
  • Instant Hot Water at the Tap, Programmable time based activation, Save Time on Install with Built-in Pump, Reduces Water Waste

Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N

$999.99  in stock
2 new from $799.99
Amazon.com
as of February 26, 2022 11:30 pm

Features

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

Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White

$259.99  in stock
10 new from $259.99
1 used from $164.81
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • This unit is flow activate
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed

Camplux 16L Outdoor 4.22 GPM Digital Display Propane Gas Tankless Water Heater

$399.99  in stock
2 new from $399.99
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Easy To Install -It only takes you 5 minutes to set up and it comes with all necessary accesories.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.
  • 4.22 Instant Hot Water-It only takes you a few minutes to get 4.22 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 4.0-110 PSI, low water pressure is perfect for campings and remote cabins.
  • 6-in-1 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.
  • Power Efficient & Energey Saving -Maximum power output 11,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -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.

Tankless Water Heater Natural Gas, Camplux Instahot Instant Water Heater, 3.18 GPM Natural Gas Tankless Water Heater, Whole House Gas Water Heater, Indoor, Black

$409.99  in stock
2 new from $399.99
1 used from $279.28
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM tankless water heater natural gas delivers 3.18 gallons per minute of on-demand endless hot water ensures constant comfortable instant hot water for 2-3 persons whole house. 3.18-GPM heater is activated by water flow rather than water pressure; Minimum activation water capacity rate: 0.65 GPM-4.8 GPM; Maximum input rating: 82,000 BTUs; Water connection location/size: Bottom/0.5-inch NPT.
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP female to 1/2" NPT male gas connector adapter then you want hook this water heater to natural gas pipe directly.It also comes with 2.3" horizontal vent pipe,ensures efficient power ventilation. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Modern Design,Easy Operation -Trendy and modern design with unique black glassy front panel,easy to control the water temperature with LED touchscreen (Fahrenheit and Celsius switch optional).The compact size instant water heater saves more space than traditional tanks.
  • Outstanding Features- The Camplux tankless hot water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating efficiency up to 89.98 %; 90°wind isolation design, this tankless natural gas water heater can anti backflow wind in high floors, the S/S 2.36 ” vent pipe exhaust harmful gases quickly.
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.

Rinnai RU199eN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM

$1,854.74  in stock
4 new from $1,854.74
1 used from $1,450.00
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

VIVOHOME 1.6GPM 6L Portable Outdoor Propane Gas Tankless Water Heater Digital Display Overheating Protection RV Camping Water Heater Easy to Install White

$139.99  in stock
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • POWER EFFICIENT - The flow rate is 6L/min, which means, 1.6 gallons of hot water can be output per minute; It consumes low energy but is very efficient, which can save your energy costs and meet your various needs at the same time( It can only be installed vertically and you should try to use the product in a ventilated place.)
  • CONVENIENT - The applicable water pressure is from 3~145 PSI(≥0.8GPM); If the water pressure is below 3 PSI, the water heater cannot be ignited; The water temperature is displayed in degrees Fahrenheit(℉), which conforms to the American usage; Equipped with a portable handle, it is very convenient to use outdoors
  • SAFETY PROTECTION - The safety of the propane water heater is a vital thing that should be pay special attention to; Our product has more than 6 protection methods: overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection and low water flow protection, which prevent the product from doing harm to users, thus providing comfortable, safe and reliable bathing conditions
  • ENERGY SAVING - With automatic ignition and flame-out modes, when you turn on the shower nozzle, the tank-less water heater automatically ignites, and when you turn off the shower nozzle, the water heater automatically extinguishes the flame; With this unique design, our on demand water heater can save energy and ensure your safety at the same time
  • WIDE APPLICATION - Our gas water heater is mainly used for outdoor hot showers, great for camping, trip to beaches or family vacations on mountains, in cabins, etc.; There is no longer cold outdoor shower, our water heater provides you a safe and comfortable hot shower at anytime and anywhere; There is a cover on top of it to prevent dust and leaves from falling in when outdoors

Fogatti RV Tankless Water Heater 2.6GPM 42000BTU with 15" x 15" White and Remote Control Door Propane Gas Hot Water Heater for Campers and Travel Trailers for RVs

$657.89
$499.99
 in stock
2 new from $499.99
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Instant & Endless Hot Water: With its heating power of 42,000 BTU & 2.2 Gallon per Minute (GPM) capacity, the RV tankless water heater supplies instant, steady, and endless hot water on demand, lets your whole family enjoy a comfortable shower on the road.
  • Easy to Install: It’s straightforward to hook up water inlets and outlets (Please note that a pressure relief valve, T-shaped connector, and some adapters may be recommended by plumbers while sold separately) , and gas inlets; and connect the wires to your 12V DC RV Battery for automatic pulse ignition and the other two wires to the wired remote controller.
  • Easy to use: The Fogatti RV tankless hot water heater comes with a digital remote controller to turn on/off the water heater, adjust water temperature, and for automatic fault diagnosis and error code display.
  • Safe to Use: This RV tankless propane hot water heater features a forced exhaust structure to keep the air safe and clean, low water pressure startup, dry-burning protection, flameout protection, water overpressure protection, overheating protection and anti-freeze protection. Also, the heater and its components are designed and built for the road, Ultimately, it'll be a worry-free experience in your RV and campers.
  • Designed For RV and Campers: The cutout size of this rv tankless water heater is 13x13 inches, and the door size is 15x15 inches. This Fogatti propane water heater is designed for retrofit applications and used as a replacement for Suburban 6 gallons, Suburban 4 gallons, Girard 2GWHAM, Furrion 2.4GPM model FWH09A-1-A, Recpro RP1057, Atwood 94001BP.

Tankless Water Heater Propane Outdoor, FOGATTI On Demand Gas Water Heater for 3-5 Persons Home Use, 7.5 GPM, 180,000 BTU, 120V AC, White

$649.99  in stock
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Tankless Water Heater: No need to wait 30 minutes for preheating and limited use of hot water like with a tank water heater. Tankless for endless hot water.
  • Satisfy Whole Family: With 7.5 GPM and 180,000 BTU heating capacity through propane gas intake, it is suitable for 3-5 outlets for the whole family. with a UEF of over 0.82, the high energy conversion rate can effectively reduce energy loss, saving the family energy and money.
  • Multiple Safety Protection: CSA certified in the United states and Canada. The tankless gas water heater outdoor features multi safety protections: Overheat protection, Flame Failure Protection, Low Water Flow Protection, High Water Pressure Protection, Dry combustion Protection and Anti-freeze Protection.
  • Outdoor Installation: It won't take up your indoor space, keeping your home more airy and having a more comfortable living experience.
  • Quality Service: Fogatti offers 2 years of service and you can contact us directly by email if you encounter any problems. We will sincerely solve any problems of our customers.

Excel Tankless On-Demand Gas Water Heater VENTFREE – Propane (LPG) - Low Water Pressure Startup

$229.00  in stock
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • PROPANE LPG GAS UNIT
  • "Low Water Pressure" Startup Technology
  • Starts with only 2 PSI of Water Pressure - Amazon Exclusive
  • Exclusive - Vent-Free Technology No expensive Flue required Amazon Exclusive
  • Compact size: front 11.5” - depth 6” – height 16”

Propane Gas Tankless Water Heater, FOGATTI Indoor for Home Gas 6.5 GPM High Efficiency Instant Hot On Demand Multiple Points of Use

$549.99  in stock
2 new from $549.99
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • Tankless Water Heater: No need to wait 30 minutes for preheating and limited use of hot water like with a tank water heater. Tankless for endless hot water.
  • Satisfy Whole Family: With 6.5 GPM and 145,000 BTU heating capacity through propane gas intake, it is suitable for 2-3 outlets for the whole family. with a UEF of over 0.82, the high energy conversion rate can effectively reduce energy loss, saving the family energy and money.
  • Multiple Safety Protection: CSA certified in the United states and Canada. The tankless natural gas water heater indoor features multi safety protections: Overheat protection, Flame Failure Protection, Low Water Flow Protection, High Water Pressure Protection, Dry combustion Protection and Anti-freeze Protection.
  • Excellent Quality and Design: The compact design effectively saves floor space, which also makes it easier to install.
  • Quality Service: Fogatti offers 2 years of service and you can contact us directly by email if you encounter any problems. We will sincerely solve any problems of our customers.

Natural Gas Tankless Hot Water Heater, Camplux 5.28 GPM On Demand Natural Gas Water Heater Outdoor, Gray

$584.54  in stock
3 new from $584.54
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • On-Demand Tankless Water Heater-Camplux advanced 5.28 GPM high efficiency flow control natural gas tankless water heater delivers 5.28 gallons per minute of on-demand endless hot water to suit medium- and smaller-sized homes. Automatically activates on water pressure between 7.0-150 PSI.
  • Constant & Sustainable Hot Water Solution -CSA certified balanced combustion design ,features with over-high wind pressure safety protection,Ipx4 water resistant protection, over-loaded electric protection,fan failure protection, equipped with PCB start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety.
  • Affordable & Efficient Savings -PCB frequency conversion intelligent control, temperature intelligent adjustment, environmental protection and durability, truly outstanding energy saving. Man-machine dialogue, heating without waiting. This residential constant model saves time, money and energy while producing safe, endless hot water for whole home at an affordable rate.
  • High Thermal Efficiency & High-Rise Wind Resistance-Phosphorus deoxidized copper heat exchanger with high temperature and corrosion resistance technology for full combustion and high thermal efficiency up to 92% . It can resist grade 8 wind speed and 240Pa high anti-wind pressure. Additionally, a wind pressure sensor is added to perceive the external wind force in real time and automatically adjust the fan, flame and maintain stable combustion.
  • Considerate Customer Service -Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Camplux 2.64 GPM Propane Gas Water Heater, Outdoor Camping Tankless Water Heater with Digital Display, White

$269.99
$244.98
 in stock
2 new from $244.98
1 used from $234.69
Free shipping
Amazon.com
as of February 26, 2022 11:30 pm

Features

  • CSA Safety Standard -CSA safety standard approved tankless propane water heater,flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 3.6-110 PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. The propane hot water heater will shut off automatically when high water temperature protection over 176 °F.
  • Lightweight Portable Design-Compact size and weights 23 lbs for easily carry. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a 15 minutes to install the propane water heater.
  • Energy Saving-Compact and light weight structure with 11.5% energy saving technology.The propane gas water heater exchanger and main burner are designed with advanced combustion technology to decrease gas consumption and burning noise.
  • 2.64 GPM Instant Hot Water- Maximum power output 68,000btu/hour, you can get 2.64 gallons instant endless hot water easily wherever you are. No need to preheat before operating the tankless gas water heater. As soon as you turn on the tap, the water flows with your desired temperature.
  • Important Tips -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 propane tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.

Best Gas Water Heaters 2022 | Price Comparison

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Your Guide To Buying The Best Gas Water Heaters

Worried about buying the Best Gas Water Heaters? Your doubts are gone.
We understand this because we have already gone through the entire process of researching the best products.
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  1. Read reviews of your chosen product, and what consumers are saying,
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  4. Select the features that satisfy your needs.

A thorough and thoughtful examination is essential to ensure that you get the “Best Gas Water Heaters” possible.
We provide guidance on buying the Best Gas Water Heaters, and this information is complete and accurate.
We use both artificial intelligence and big data to analyze the information we collect, using a selection of algorithms that have allowed us to compile a list of the Best Gas Water Heaters currently available on the market.
This is the technology we use to compile our list based on a variety of factors, we always remember that keeping the Best Gas Water Heaters information up-to-date is the most important thing, so we are constantly updating our site.

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