Top 10 Gas Tankless Water Heater – Water Heaters

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1. Rinnai

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Large, Rinnai V65IN Tankless Water Heater, V65iN-Natural Gas/6.5 GPM

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Rinnai #ad - Control-r 2. 0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode. V65in he high efficiency tankless Hot Water Heater - Natural Gas: Indoor Installation Only. Residential factory warranty - 120 months heat exchanger, 12 months labor, 60 months parts. Endless hot water for your entire home. Up to 6. 5 gpm hot water flow rate varies by groundwater temp.
BrandRinnai #ad
ManufacturerRinnai #ad
Height23.6 Inches
Length13.88 Inches
Weight49.75 Pounds
Width8.8 Inches
Part NumberV65IN
ModelV65IN
WarrantyResidential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

2. Rinnai

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Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation

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Rinnai #ad - Endless hot water for your entire home. Control-r 2. 0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode. Up to 6. 5 gpm hot water flow rate varies by groundwater temp. Residential factory warranty - 120 months heat exchanger, 12 months labor, 60 months parts. V65en he high efficiency tankless Hot Water Heater - Natural Gas: Outdoor Installation Only.
BrandRinnai #ad
ManufacturerRinnai #ad
Height24.3 Inches
Length9.6 Inches
Weight47.4 Pounds
Width14 Inches
Part NumberV65EN
ModelV65EN
WarrantyResidential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

3. GASFLEX

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Excel Pro Tankless Gas Water Heater NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Bosch FREE FLUE KIT, Rheem,Noritz

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GASFLEX #ad - Power vented directly vertically rooftop or sideways wall via Stainless Steel CAT III Flue 3. 5" diameter Included 20". Delivers 6. 6 gpm of hot water with a 35°F Instant Temperature Rise Equivalent to 5. 5gpm with a 45F temp Rise. Modulates heat output in response to the flow rate of water running through the unit. Certified for installation in Manufactured Mobile Homes Pure Copper Heat Exchanger. Natural gas - european Model - Digital Display is in Celsius.
BrandGASFLEX #ad
ManufacturerEXCEL #ad
Height23 Inches
Length14.5 Inches
Width5.5 Inches
Part Number0707239100098
ModelJSD10D 10D

4. Eccotemp

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Eccotemp 45HI-NG Indoor 6.8 GPM Natural Gas Tankless Water Heater, White

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Eccotemp #ad - Whole home indoor, rated at 6. 8 gpm that activates only when in use,  Natural Gas powered tankless water heater, making it an energy effiecient and perfrect for any home.

The eccotemp 45h/hi series is csa certified for US and Canadian use guaranteeing a safe, easy, and enjoyable installation experience. Comes with a temperature and pressure Relief Valve, a Gas Shut-Off Valve and is equipped with 3/4" NPT fittings. The indoor installation will save space in your home and because it is compact and quiet, you will barely notice it is there. 4" venting is required for the indoor models. Apartment or townhome! . Venting is available for purchase separately or you can purchase the unit and vent kit as a bundle.
BrandEccotemp #ad
ManufacturerEccotemp Systems #ad
Height6 Inches
Length22 Inches
Width15 Inches
Part Number45HI-NG
Model45HI-NG
Warranty5 year manufacturer warranty on parts, 10 year on heat exchanger

5. MAREY

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

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MAREY #ad - Unlimited hot water whenever is needed. Compact design saves space and is easy to install almost anywhere. Rustproof, no water loss due to leaks. Provide endless hot water on demand and only as needed. 5-year. Save up to 60% on electricity bills for water heating. Works easily with low levels of water pressure. Allows water temperature to be controlled. No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages.
BrandMAREY #ad
ManufacturerMarey #ad
Height23.6 Inches
Length6.9 Inches
Weight21 Pounds
Width13.6 Inches
Part NumberMARGA10LP
ModelGA10LP

6. Rheem

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Grey, Rheem RTG-84XLN-1 Tankless Water Heater

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Rheem #ad - Exclusive water savings technology conserving up to 1, 100 gallons per year. For use outdoors with freeze protection up to -30 degrees. Fuel type: Natural Gas. 157, 000 btu gas consumed per hour. Recirculation pump ready kit ready. Exclusive hot start Programming minimizes cold water burst by staying in ready-fire state.
BrandRheem #ad
ManufacturerRheem #ad
Height23.63 Inches
Length8.88 Inches
Weight54 Pounds
Width13.88 Inches
Part NumberRTG-84XLN-1
ModelRTG-84XLN-1

7. Noritz

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Natural Gas, Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater, 6.6 GPM

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Noritz #ad - Remote thermostat & 6' power cord included. High Efficiency. Can be vented with Schedule 40 PVC Pipe and Fitting. Low Nox. Endless hot water.
BrandNoritz #ad
ManufacturerNoritz #ad
Height23.6 Inches
Length6.7 Inches
Weight39 Pounds
Width13.8 Inches
Part NumberNRC661-DV-NG
ModelNRC661-DV-NG
Warranty12 Year Heat Exchanger, 5 Year Parts, 1 Year Labor

8. Rheem

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GREY, small, Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater

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Rheem #ad - Threaded for easy replacement, simple installation, digital temperature display. External digital thermostatic control with LED display +/1 degree accuracy. Simple installation – bottom 3/4 inch NPT water connections. 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.
BrandRheem #ad
ManufacturerRheem #ad
Height19 Inches
Length4 Inches
Weight8.5 Pounds
Width15 Inches
Part NumberRTEX-18
ModelRTEX-18

9. Rinnai

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Rinnai RU Series Sensei SE+ Tankless Hot Water Heater: Indoor Installation

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Rinnai #ad - Hot water is available when you need it! Residential factory warranty - 120 months heat exchanger, 12 months labor, 60 months parts. Up to 11 gpm hot water flow rate varies by groundwater temp. Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits. Endless hot water for your entire home. Ru199in sensei se+ super high efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only.
BrandRinnai #ad
ManufacturerRinnai #ad
Height33.86 Inches
Length22.05 Inches
Weight74.1 Pounds
Width14.76 Inches
Part NumberRU199iN
ModelRU199iN
WarrantyResidential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

10. TAKAGI

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Takagi T-H3M-DV-N Condensing Direct Vent Tankless Water Heater, Natural Gas

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TAKAGI #ad - Perfect for light residential and radiant heating applications. Inlet, outlet thermistors for constant temperature monitoring. Manufactured in Japan.
BrandTAKAGI #ad
ManufacturerTakagi #ad
Height29.5 Inches
Length17.75 Inches
Width13.12 Inches
Part NumberT-H3M-DV-N
ModelTH3MDVNG