Top 9 Condensing Tankless Water Heater – Water Heaters

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1. Noritz

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

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Noritz #ad - Low Nox. Remote thermostat & 6' power cord included. High Efficiency. Endless hot water. Can be vented with Schedule 40 PVC Pipe and Fitting.
BrandNoritz #ad
ManufacturerNoritz #ad
Height23.6 Inches
Length6.7 Inches
Weight0 Pounds
Width13.8 Inches
Part NumberNRC661-DV-NG
ModelNRC661-DV-NG
Warranty12 Year Heat Exchanger, 5 Year Parts, 1 Year Labor

2. Rinnai

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Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

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Rinnai #ad - Ultra low NOx emissions. Indoor installation only. Up to 096 energy factor/up to 092 uniform Energy Factor. Concentric or PVC venting option. Fuel type: naturAL GAS. The space-saving design allows Indoor Installation type. 199, 000 max bTU.
BrandRinnai #ad
ManufacturerRinnai #ad
Height26 Inches
Length10 Inches
Weight82 Pounds
Width18.5 Inches
Part NumberRUC98IN
ModelRUC98iN
WarrantyResidential: Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)
Commercial: Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)

3. EZ Tankless

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Digital Display, Whole Home, EZ Ultra HE Natural Gas Indoor Condensing Tankless Water Heater

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EZ Tankless #ad - This heater can be vented horizontally or vertically using 2" Solid Core Schedule 40 PVC/CPVC. Condensing technology - the EZ Ultra HE uses exhaust gas to preheat incoming water for added efficiency. Back-draft prevention device and stainless steel horizontal vent pipe are included. Free shipping. Capacity up to 3. 4 gpm @ 45f rise In Ambient Temperature.
BrandEZ Tankless #ad
ManufacturerEZ Tankless #ad
Height6.5 Inches
Length27 Inches
Width14.5 Inches

4. Rinnai

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Rinnai RL Series HE+ Tankless Hot Water Heater | RL94eN, Natural Gas | Outdoor Installation

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Rinnai #ad - Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits. Endless hot water for your entire home. Rl94en he+ high efficiency tankless Hot Water Heater - Natural Gas: Outdoor Installation Only. Hot water is available when you need it! Residential factory warranty - 120 months heat exchanger, 12 months labor, 60 months parts. Up to 9. 4 gpm hot water flow rate varies by groundwater temp.
BrandRinnai #ad
ManufacturerRinnai #ad
Height22.99 Inches
Length14.02 Inches
Weight44.31 Pounds
Width10 Inches
Part NumberRL94eN
ModelRL94eN
Warranty12-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor for Residential Installations

5. American Standard Water Heaters

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American Standard TCWH180S-AS-NG 180,000 BTU Tankless Natural Gas Ultra Low Nox Condensing Water Heater

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American Standard Water Heaters #ad - Energy star & etl certified - uses 14% to 55% less energy than equipment that meets minimum federal standards. Gas valve system:Air ratio valve.

Superior thermal efficiency - with energy conservation in mind, these units maintain an impressive 96% efficiency rating. These units are also field convertible from one gas source to another. Certified - these units hold both aNSI z2. 1. 103/csa 4. 3 certifications and are designed for indoor wall mounting. Durable - both the primary and secondary heat exchangers are constructed of 304 Grade stainless Steel. Eco friendly - ultra low nox combustion system compatible for both natural gas and liquid propane.
BrandAmerican Standard Water Heaters #ad
ManufacturerAmerican Standard #ad
Height31.13 Inches
Length15.25 Inches
Weight88 Pounds
Width17.38 Inches
Part NumberTCWH180S-AS-NG
ModelTCWH180S-AS-NG

6. Rinnai

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Rinnai RUCS Series SE Tankless Hot Water Heater: Indoor Installation

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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. Rucs75in se super high efficiency tankless Hot Water Heater - Natural Gas: Indoor Installation Only. Residential factory warranty - 120 months heat exchanger, 12 months labor, 60 months parts. Up to 7. 5 gpm hot water flow rate varies by groundwater temp. Endless hot water for your entire home.
BrandRinnai #ad
ManufacturerRinnai #ad
Height26 Inches
Length10 Inches
Width14.5 Inches
Part NumberRUCS75iN
ModelRUCS75iN
WarrantyResidential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

7. itanso

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With Pressure Relief Valve and Clean Brass Construction, iTANSO 3/4-inch IPS Isolator Tankless Water Heater Service Valve Kit

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itanso #ad - Lead free brass meets all federal & state standards for lead levels in drinking water system components. Easy identification Colored valve handles for easy identification of hot and cold water valves.

Trusted support & warranty itanso provides a oNE-YEAR guarantee against defects in material and workmanship. Hot and cold set of full port forged brass ball valves with hi-flow hose drains and pressure relief valve outlet, come with a roll of PTFE tape avoiding the leak. Any problem please feel free to contact us: [email protected] Cc. Trouble-free installation hi-flow hose drains 500 wog & pressure relief valve 150 PSI/ 200, 000 BTU; Full port brass ball valves with adjustable packing gland.
Branditanso #ad
ManufactureriTANSO #ad
Weight3.56 Pounds

8. TAKAGI

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10-Gallon Per Minute, Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 199,000 BTU

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TAKAGI #ad - Satisfies the 2012 scaqmd rule 1146. 2 for ultra-Low NOx Emissions. Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes. Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, Integrated controls and power cord as standard features. Endless hot water, compact, Space saving, On-demand usage, Energy conservation. Computerized safety features, No pilot light to have to worry about.
BrandTAKAGI #ad
ManufacturerTakagi #ad
Height22.5 Inches
Length10.75 Inches
Weight59 Pounds
Width17.75 Inches
Part NumberT-H3-DV-N
ModelT-H3-DV-N

9. Noritz

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Noritz NRC66DVLP Indoor Condensing Direct Tankless Hot Water Heater, 6.6 GPM, Liquid Propane

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Noritz #ad - Endless hot water. Low Nox. High Efficiency. Can be vented with Schedule 40 PVC Pipe and Fitting. Remote thermostat & 6' power cord included.
BrandNoritz #ad
ManufacturerNoritz #ad
Height23.6 Inches
Length6.7 Inches
Weight38 Pounds
Width13.8 Inches
Part NumberNRC661-DV-LP
ModelNRC661-DV-LP
Warranty12 Year Heat Exchanger, 5 Year Parts, 1 Year Labor