When it comes to buying Gas Tankless Water Heaters , you will find many brands selling the same product. And this will make you confused because you will not know which one of these products will meet your needs and desires.

After a lot of extensive research, we’ve put together a collection of the best Gas Tankless Water Heaters that are currently available on the market.

Best Gas Tankless Water Heaters

Best Gas Tankless Water Heaters Reviews

SaleNo. 1

MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Natural Gas Tankless Water Heater, White

  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust

No. 2

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

No. 3

Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 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 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

No. 4

Rheem RTG-84XLN-1 Performance Mid-Efficiency Tankless 84 Outdoor Water Heater, Gray

  • 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

No. 5

Rinnai V94eN Natural Gas Tankless Hot Water Heater, 9.8 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 up to 9.8 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

No. 6

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 installation be done by a licensed professional.
  • 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 energy conversion rate can effectively reduce energy loss.
  • 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 installation.

No. 7

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.

No. 8

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

No. 9

Rinnai RL94eN Natural Gas Tankless Hot Water Heater, 9.8 GPM

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance 9.8 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

No. 10

Furrion 2.4GPM Tankless RV Gas Water Heater with White 16.14” x 16.14” Door – FWH09A-1-A

  • High Heating Power: 60K BTU heating power & a 2.4GPM capacity, Furrion RV Gas Water Heater will deliver hot water on demand at consistent temperature even when the ambient temperature drops to 32ºF.
  • Steady Temperatures: Furrion’s Vortex technology consistently mixes water to your desired temperature. Dual-sensors automatically shut power off if the temperature exceeds a safe limit.
  • Replacement Door for Suburban: Specially designed for retrofit applications and use as a replacement door for Suburban 4/6 Gallon Water Heater models. This door fits the required dimension of 16.14 x 16.14 Inches.
  • Built for the Road: Engineered for durability and performance on the road, with Furrion VibrationSmart technology and components designed to withstand intense vibration encountered by uneven terrain.
  • Warranty & Dimensions: Designed with the highest quality materials, the Furrion RV Gas Water Heater is covered by Furrion’s 2-year Warranty. Product Dimensions (W x H x D): 12.81 x 12.62 x 20.75 Inches

Final Words

In today’s market where same type of products is available from almost every brand, finding the right Gas Tankless Water Heaters is a challenge. Every purchase requires research. Before you buy anything you need to answer the follow questions:

  • What are the features of the best Gas Tankless Water Heaters?
  • How to find the right Gas Tankless Water Heaters within your budget?
  • What is the average price of a good Gas Tankless Water Heaters?

Our data analysis platform helps you answer these questions using state of the art algorithm. We analyze thousands of reviews from real users to generate usability score for each brand. This usability score is unbiased and powered by people’s experience the product. Then we provide you with an unbiased list of 10 best affordable Gas Tankless Water Heaters to buy. Our goal is to make your decision making easy and shopping experience fun.