20 Best Gas Water Heaters [2024]

Are you looking for the best gas water heaters? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling gas water heaters.

We Recommended:

# Preview Product
1 Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
2 Rinnai RL75eP Propane Gas Tankless Hot Water Heater, 7.5 GPM Rinnai RL75eP Propane Gas Tankless Hot Water Heater, 7.5 GPM
3 MAREY GA24CSANG Max 8.34GPM, High Efficiency, CSA Certified, Residential Multiple Points of Use... MAREY GA24CSANG Max 8.34GPM, High Efficiency, CSA Certified, Residential Multiple Points of Use...
4 Eccotemp i12-LP Water Heater, 4 GPM, Black Eccotemp i12-LP Water Heater, 4 GPM, Black
5 Rheem Mid-Efficiency 7.0GPM Indoor Liquid Propane Tankless Water Heater Rheem Mid-Efficiency 7.0GPM Indoor Liquid Propane Tankless Water Heater
6 FOGATTI Natural Gas Tankless Water Heater - Indoor 7.5 GPM | 170,000 BTU Gray Instant Hot Water... FOGATTI Natural Gas Tankless Water Heater - Indoor 7.5 GPM | 170,000 BTU Gray Instant Hot Water...
7 Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
8 Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation
9 Rinnai V75iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 7.5 GPM Rinnai V75iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 7.5 GPM
10 Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM - RTGH-68VLN-2 Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM - RTGH-68VLN-2
11 Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per... Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon...
12 Noritz NRC66ODNG Outdoor Condensing Tankless Water Heater, 6.6 GPM - Natural Gas Noritz NRC66ODNG Outdoor Condensing Tankless Water Heater, 6.6 GPM - Natural Gas
13 MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Liquid... MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use...
14 Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
15 Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White
16 Takagi T-H3S-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 8-Gallon Per... Takagi T-H3S-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 8-Gallon...
17 Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation... Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in...
18 Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.0 GPM - RTGH-90XLP-2 Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.0 GPM - RTGH-90XLP-2
19 Rinnai RSC199iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane... Rinnai RSC199iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus...
20 Rheem Tankless Indoor Liquid Propane Water Heater Mid-Efficiency 9.5 GPM Rheem Tankless Indoor Liquid Propane Water Heater Mid-Efficiency 9.5 GPM
SaleBestseller No. 1
Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 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 outdoors with freeze protection up to -30 degrees
SaleBestseller No. 2
Rinnai RL75eP Propane Gas Tankless Hot Water Heater, 7.5 GPM
  • Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in...
  • 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...
  • Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger,...
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your...
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for...
SaleBestseller No. 3
MAREY GA24CSANG Max 8.34GPM, High Efficiency, CSA Certified, Residential Multiple Points of Use...
  • Continuous Hot Water On Demand: This Marey whole-house indoor tankless water heater provides a flow rate of 4.2GPM – 8.34 GPM. Please refer to our...
  • CSA Certified for the US and Canada markets.
  • Saves Money and Space: The 24L tankless water heater has an indoor wall-mounted design that frees up storage space. The unit comes with a LED digital...
  • Multiple Safety Features: Overheating Protection, Flame-failure Protection and Anti-freeze Protection.
  • We recommend installation be performed by a professional for safety and compliance.
Bestseller No. 4
Eccotemp i12-LP Water Heater, 4 GPM, Black
  • Whole home indoor, gas powered tankless water heater, rated at 4 GPM that activates only on demand and no pilot light needed, reducing energy...
  • 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
  • Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
Bestseller No. 5
Rheem Mid-Efficiency 7.0GPM Indoor Liquid Propane Tankless Water Heater
  • Continuous Hot Water – never run out of hot water, even with back-to-back showers
  • Tankless Gas Water Heaters are cost saving and energy efficient
  • Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
  • Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
  • Easy, Convenient Control –Easily adjust water temperature ranging from 85˚F–140˚F
SaleBestseller No. 6
FOGATTI Natural Gas Tankless Water Heater - Indoor 7.5 GPM | 170,000 BTU Gray Instant Hot Water...
  • Compact Powerhouse Performance: Switch from bulky traditional tank heaters to the sleek FOGATTI Tankless Water Heater. Enjoy up to 5 times the...
  • Endless Hot Water on Demand: Experience a continuous supply of hot water with the FOGATTI Tankless Water Heater. Unlike tank heaters that heat a whole...
  • Precision Temperature Control: The FOGATTI features advanced water flow sensors and a smart chip for precise calculation of the heat needed to reach...
  • Versatile and Safe: Designed for versatility in any domestic setting, from filling your bathtub for a relaxing soak to kitchen use for washing fruits...
  • CSA Certified, Easy Installation: The InstaGas Comfort 120 Series by FOGATTI is CSA certified, highlighting its safety and quality standards. With an...
SaleBestseller No. 7
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting
  • Space Savings - Compact, space-saving design. Perfect for a tank replacement.
  • Water & Gas Leak Detection will shut down unit and provide an error code
  • For use indoor only
Bestseller No. 8
Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation
  • 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.
SaleBestseller No. 9
Rinnai V75iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 7.5 GPM
  • Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner...
  • 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...
  • Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit; Includes 15-, 5-, and 1-year residential guarantee...
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your...
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for...
Bestseller No. 10
Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM - RTGH-68VLN-2
  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting
  • Space Savings - Compact, space-saving design. Perfect for a tank replacement.
  • Water & Gas Leak Detection will shut down unit and provide an error code
  • For Indoor use only
Bestseller No. 11
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per...
  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
  • Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, Integrated controls and power...
SaleBestseller No. 12
Noritz NRC66ODNG Outdoor Condensing Tankless Water Heater, 6.6 GPM - Natural Gas
  • Endless hot water
  • Very high efficiency
  • Compact Space Saving Design
  • Low Nox
SaleBestseller No. 13
MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Liquid...
  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust
SaleBestseller No. 14
Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
  • Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.
  • For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
  • Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
  • Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
  • Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.Minimum 0.65 GPM flow rate
Bestseller No. 15
Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White
  • Naturally vented outdoors: you don't need to buy a extra venting
  • Serves to a variety of applications, since washing your car, windows cleaning, wash your horse or your dog and take a hot shower
  • Perfect for campsites, cabins, remote areas or just around the house. BTU/h - 35000 BTU/h. Fuel Type - LPG(liquid propane gas). pipe fittings - 1/2...
  • Provide endless hot water on demand only as needed
  • No electrical connection is required
Bestseller No. 16
Takagi T-H3S-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 8-Gallon Per...
  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
  • Dimension:22.5"H x 17.75"W x 10.75"D
Bestseller No. 17
Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation...
  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting
  • Space Savings - Compact, space-saving design. Perfect for a tank replacement.
  • Water & Gas Leak Detection will shut down unit and provide an error code
  • Auto-Learn Programming - tracks water usage over a period of time and auto-programs to meet hot water needs at peak times
Bestseller No. 18
Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.0 GPM - RTGH-90XLP-2
  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting
  • Space Savings - Compact, space-saving design. Perfect for a tank replacement.
  • Water & Gas Leak Detection will shut down unit and provide an error code
  • For use outdoors with freeze protection up to -30 degrees
Bestseller No. 19
Rinnai RSC199iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane...
  • Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then...
  • Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size...
  • Smart, Durable Design: With multiple venting options, water heater fits a wide array of spaces; Includes 15-, 5-, and 1-year residential guarantee for...
  • Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your...
  • Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for...
Bestseller No. 20
Rheem Tankless Indoor Liquid Propane Water Heater Mid-Efficiency 9.5 GPM
  • Continuous Hot Water – never run out of hot water, even with back-to-back showers
  • Tankless Gas Water Heaters are cost saving and energy efficient
  • Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
  • Easy, Convenient Control –Easily adjust water temperature ranging from 85˚F–140˚F
  • For indoor use only

Having trouble finding a great gas water heaters?

This problem is well understood by us because we have gone through the entire gas water heaters research process ourselves, which is why we have put together a comprehensive list of the best gas water heaterss available in the market today.

After hours of searching and using all the models on the market, we have found the best gas water heaters for 2023. See our ranking below!

How Do You Buy The Best Gas Water Heaters?

Do you get stressed out thinking about shopping for a great gas water heaters? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching gas water heaters, which is why we have assembled a comprehensive list of the greatest gas water heaters available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for gas water heaters that you consider buying. Your questions might include the following:

  • Is it worth buying an gas water heaters?
  • What benefits are there with buying an gas water heaters?
  • What factors deserve consideration when shopping for an effective gas water heaters?
  • Why is it crucial to invest in any gas water heaters, much less the best one?
  • Which gas water heaters are good in the current market?
  • Where can you find information like this about gas water heaters?

We’re convinced that you likely have far more questions than just these regarding gas water heaters, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for gas water heaters, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible gas water heaters. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an gas water heaters buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available gas water heaters currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of gas water heaters has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an gas water heaters?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your gas water heaters.
  5. Customer Ratings: Number ratings grade gas water heaters objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their gas water heaters.
  7. Product Quality: You don’t always get what you pay for with an gas water heaters, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an gas water heaters is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining gas water heaters information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding gas water heaters is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What are the best brands of gas water heaters?

A: A.O. Smith GPVX-75L ProMax SL Power Vent 7 Gas Water Heater. … Rheem G100-80 Natural Gas Universal Commercial Water Heater. The model is all about giving you the performance that you can always like as compared to the other models on … Takagi T-H3S-DV-N Condensing High Efficiency Natural Gas Indoor Water Heater. …

Q: What are the top 5 gas water heaters?

A: BEST OVERALL: Rheem Performance Platinum 50 Gal Natural Gas Heater; BEST BANG FOR THE BUCK: A.O. Smith Signature 40-Gallon Natural Gas Heater; ELECTRIC TANK PICK: Rheem Gladiator 50 Gal. Electric …

Q: What is the highest rated gas water heater?

A: BEST OVERALL: Rheem Performance Platinum 50 Gal Natural Gas Heater BEST BANG FOR THE BUCK: A.O. … ELECTRIC TANK PICK: Rheem Gladiator 50 Gal. … ELECTRIC TANKLESS PICK: Stiebel Eltron Tankless Water Heater,Electric GAS TANK PICK: A.O. … GAS TANKLESS PICK: Rinnai High Efficiency Natural Gas Tankless Heater

Q: What type of water heater is best?

A: – Compact – Lightweight – Boosts the supply of hot water

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