20 Best Tankless Hot Water Heater Natural Gas [2022]

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

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# Preview Product
1 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
2 Marey GA10LP 3.1 GPM Propane Gas Tankless Water Heater Marey GA10LP 3.1 GPM Propane Gas Tankless Water Heater
3 MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Natural... MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use...
4 Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater
5 Tankless Water Heater Natural Gas, Camplux Instant Hot Water Heater, 3.18 GPM Natural Gas Tankless... Tankless Water Heater Natural Gas, Camplux Instant Hot Water Heater, 3.18 GPM Natural Gas...
6 Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
7 Rinnai RUCS65IN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Indoor Installation Rinnai RUCS65IN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Indoor Installation
8 Tankless Water Heater, 3.17 GPM Instant Hot Natural Gas Water Heater with Constant Temperature,... Tankless Water Heater, 3.17 GPM Instant Hot Natural Gas Water Heater with Constant Temperature,...
9 Rinnai RUCS75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM Rinnai RUCS75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
10 Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater, Gray Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater, Gray
11 Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
12 Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
13 Rinnai RU180eN Natural Gas Condensing Tankless Hot Water Heater, 10 GPM Rinnai RU180eN Natural Gas Condensing Tankless Hot Water Heater, 10 GPM
14 Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with... Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with...
15 Rinnai RU199eN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM Rinnai RU199eN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
16 Rinnai CU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM Rinnai CU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
17 Rinnai RU130iN Natural Gas Condensing Tankless Hot Water Heater, 7 GPM Rinnai RU130iN Natural Gas Condensing Tankless Hot Water Heater, 7 GPM
18 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...
19 Tankless Water Heater Natural Gas, Camplux 5.28 GPM On Demand Instant Hot Water Heater for Whole... Tankless Water Heater Natural Gas, Camplux 5.28 GPM On Demand Instant Hot Water Heater for Whole...
20 Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
Bestseller No. 1
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.
Bestseller No. 2
Marey GA10LP 3.1 GPM Propane Gas Tankless Water Heater
  • Marey Power Gas 10L Tankless Water Heater is simple to install and requires no electricity to operate.
SaleBestseller No. 3
MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Natural...
  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust
SaleBestseller No. 4
Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater
  • We recommend that all installations of units must be done in accordance with the local building and plumbing codes of the installation location and...
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 170,000 BTU high heating capacity and maximum 7.5 GPM. It is suitable for 3-4 outlet points, which can satisfy whole family. UEF over 0.82, the high...
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy...
Bestseller No. 5
Tankless Water Heater Natural Gas, Camplux Instant Hot Water Heater, 3.18 GPM Natural Gas Tankless...
  • 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...
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP...
  • Modern Design,Easy Operation -Trendy and modern design with unique black glassy front panel,easy to control the water temperature with LED...
  • Outstanding Features- The Camplux tankless hot water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating...
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety....
Bestseller No. 6
Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
  • 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...
  • Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor...
Bestseller No. 7
Rinnai RUCS65IN Tankless Hot Water Heater, 6.5 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: High-performance 6.5 GPM hot water flow rate for a powerful, constant stream
  • Multiple venting options available including PVC/CPVC using the Ubbink Concentric to Twin Pipe adaptor allow for an easy installation
  • Guaranteed to Last: 12-, 5-, and 1-year residential factory warranty for heat exchanger, parts, and labor respectively
SaleBestseller No. 8
Tankless Water Heater, 3.17 GPM Instant Hot Natural Gas Water Heater with Constant Temperature,...
  • Note: Please download and read the installation manual and product manual carefully when purchasing the product to ensure that your installation...
  • 【Tankless Instant Hot Water Heater】No need to preheat before using the tankless water heater. As soon as you turn on the tap, the water flows...
  • 【High Sensitive Touch Led Display】Comes with smart digital LED display high-definition large screen, freely adjustable the temperature between...
  • 【Multiple Security Protection】The natural gas water heater is upgraded with 12 protection methods to ensure your safety. Such as dry burning...
  • 【Energy and Money Saving】The hot water heater adjusts power input based on flow rate and temp setting in real time. Summer/winter 2 modes to save...
SaleBestseller No. 9
Rinnai RUCS75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
  • 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 7.5 GPM hot water flow rate for a powerful, constant stream
  • Multiple venting options available including PVC/CPVC using the Ubbink Concentric to Twin Pipe adaptor allow for an easy installation
  • Guaranteed to Last: 12-, 5-, and 1-year residential factory warranty for heat exchanger, parts, and labor respectively
Bestseller No. 10
Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater, Gray
  • Condensing Technology for Greater Efficiency and Significant Energy Savings
  • Residential Temperature Settings: 98°F - 140°F
  • Manufactured in Mexico
Bestseller No. 11
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
  • 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
SaleBestseller No. 12
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. 13
Rinnai RU180eN Natural Gas Condensing Tankless Hot Water Heater, 10 GPM
  • 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 10 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
Bestseller No. 14
Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with...
  • 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...
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP...
  • Modern Design,Easy Operation -Trendy and modern design with unique white glassy front panel,easy to control the water temperature with LED...
  • Outstanding Features- The Camplux tankless gas water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating...
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety....
Bestseller No. 15
Rinnai RU199eN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
  • 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.
Bestseller No. 16
Rinnai CU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
  • Energy and Space Efficient: Space-saving design conserves energy as it only heats when necessary; multiple venting options offer installation...
  • Optimal Water Pressure: High-performance 11 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...
  • Guaranteed to Last: 8-, 5-, and 1-year commercial warranty for heat exchanger, parts, and labor, respectively
Bestseller No. 17
Rinnai RU130iN Natural Gas Condensing Tankless Hot Water Heater, 7 GPM
  • 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 7 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
Bestseller No. 18
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per...
  • The T-H3-DV-N is well suited for residential/ commercial applications such as small restaurants and beauty salons.
  • Complies with Ultra-Low NOx regulations.
  • Utilizing commercial grade copper alloy for the heat exchanger tubing, the T-H3 is also suitable for heavier residential usages such as space heating...
  • Certified up to 10,100 ft. altitude
Bestseller No. 19
Tankless Water Heater Natural Gas, Camplux 5.28 GPM On Demand Instant Hot Water Heater for Whole...
  • 5.28 GPM Instant Constant Hot Water- Camplux CA528 tankless water heater is powered by 120 VAC voltage, features imported PCB with precise temperature...
  • Convenient, Easy Installation-The natural gas tankless water heater is perfect with Camplux customized vent pipe CP-70 together for better ventilation...
  • S/S Burner, Thermal Efficiency Up to 89.98% - The Camplux instant hot water heater comes with CSA certified balanced combustion design, v-type...
  • Safe Structure, High-Rise Wind Resistance- 90°wind isolation design, this tankless hot water heater can anti backflow wind in high floors.Features CO...
  • Considerate Customer Service-Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience...
Bestseller No. 20
Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Third party efficiency listed by AHRI
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Low Nox Version

Having trouble finding a great tankless hot water heater natural gas ?

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

After hours of searching and using all the models on the market, we have found the best tankless hot water heater natural gas for 2022. See our ranking below!

How Do You Buy The Best Tankless Hot Water Heater Natural Gas ?

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

We understand, because we’ve already gone through the whole process of researching tankless hot water heater natural gas , which is why we have assembled a comprehensive list of the greatest tankless hot water heater natural gas 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 tankless hot water heater natural gas that you consider buying. Your questions might include the following:

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

We’re convinced that you likely have far more questions than just these regarding tankless hot water heater natural gas , 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 tankless hot water heater natural gas , 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 tankless hot water heater natural gas . Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an tankless hot water heater natural gas 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 tankless hot water heater natural gas 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 tankless hot water heater natural gas 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 tankless hot water heater natural gas ?
  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 tankless hot water heater natural gas .
  5. Customer Ratings: Number ratings grade tankless hot water heater natural gas objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their tankless hot water heater natural gas .
  7. Product Quality: You don’t always get what you pay for with an tankless hot water heater natural gas , sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an tankless hot water heater natural gas is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining tankless hot water heater natural gas 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 tankless hot water heater natural gas is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the best hot water heater?

A: Largest Water Heater Manufacturers. By market share,the water heater industry is dominated by a handful of brands. … Top Rated Water Heater Manufacturers. Consumer Reports offers a slightly altered list of top rated manufacturers based on sales,performance and variety. Tips for Buying Efficiently. … Performance vs. …

Q: Who sells tankless water heaters?

A: Tankless water heaters, also known as instant … Our client base includes players from across various business verticals in over 57 countries worldwide. We sell different types of products and services to both investment professionals and individual …

Q: How many BTUs does a tankless water heater use?

A: Whereas the industry standard water heater tank uses 36,000 BTU, the average tankless water heater requires anywhere from 150,000 to 200,000 BTU. The reason is that tankless water heaters need to get the water up to temperature almost instantaneously. To do that, it requires a very high volume of gas.

Q: How do you fix a hot water heater?

A: Turn off the breaker to the water heater’s circuit in the service panel. Remove the access panel for the upper heating element on the water heater. Remove the insulation and the plastic safety guard,being careful not to touch any wires or electrical terminals.

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