Top 10 Tankless Water Heater Natural Gas Indoor Condensing – Water Heaters

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1. Rheem

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Gray, RHEEM RTGH-84DVLN-2 Natural Gas Condensing Tankless Water Heater, Silver

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Rheem #ad - Water & gas leak detection will shut down unit and provide an error code. Space savings - compact, space-saving design. Perfect for a tank replacement. Hot water without the wait - or the waste. Low operating cost - High energy efficiency and water savings setting.
BrandRheem #ad
ManufacturerRheem #ad
Height18.5 Inches
Length27.5 Inches
Weight77.9 Pounds
Width9.8 Inches
Part NumberRTGH-84DVLN-2
ModelRTGH-84DVLN-2

2. Rinnai

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Indoor Installation, Up to 7.5 GPM, Rinnai V75iN Non-Condensing Natural Gas Tankless Water Heater

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Rinnai #ad - Original design: tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE180iN model. Professional installation recommended: visit the find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician.

Smart, and 1-year residential guarantee for heat exchanger, and parts, labor, long-term damage to unit; includes 15-, Durable Design: Enhanced scale detection helps prevent serious, 5-, respectively; See Controlr module for WiFi control not included. Never run out of hot water with this compact tankless gas water heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.

5 gpm 5 fixtures at once. Find your rinnai: see our product guides, warranty information, energy guide, manuals, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region.
BrandRinnai #ad
ManufacturerRinnai #ad
Height13 Inches
Length17.5 Inches
Weight45.6 Pounds
Width30 Inches
Part NumberV75IN
ModelV75IN
WarrantySee Manufacturer

3. TAKAGI

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

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TAKAGI #ad - 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. 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. Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes.
BrandTAKAGI #ad
ManufacturerTakagi #ad
Height24.88 Inches
Length11.25 Inches
Weight59 Pounds
Width17.75 Inches
Part NumberT-H3-DV-N
ModelT-H3-DV-N

4. Rinnai

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11 GPM, Rinnai RU199iN Condensing Tankless Hot Water Heater, Indoor Installation, Natural Gas

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Rinnai #ad - Optimal water pressure: up to 11 GPM hot water flow rate for a powerful, constant stream. Endless hot water: enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended.

Guaranteed to last: 15-, 5-, and parts, and 1-year residential for heat exchanger, labor, respectively. Energy and space efficient: Space-saving design conserves energy as it heats only when necessary. Wifi monitoring. Instant heating: equipped with circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation.
BrandRinnai #ad
ManufacturerRinnai #ad
Height33.86 Inches
Length22.05 Inches
Weight74.1 Pounds
Width14.76 Inches
Part NumberRU199iN
ModelRU199iN
WarrantySee Manufacturer

5. Rheem

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Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

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Rheem #ad - Water & gas leak detection will shut down unit and provide an error code. Low operating cost - High energy efficiency and water savings setting. Perfect for a tank replacement. For use indoor only. Space savings - compact, space-saving design. Hot water without the wait - or the waste.
BrandRheem #ad
ManufacturerRheem #ad
Height28.5 Inches
Length27.5 Inches
Weight77 Pounds
Width9.75 Inches
Part NumberRTGH-95DVLN-2
ModelRTGH-95DVLN-2

6. Rheem

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Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM, RTGH-68VLN-2

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Rheem #ad - Water & gas leak detection will shut down unit and provide an error code. Space savings - compact, space-saving design. Perfect for a tank replacement. For indoor use only. Hot water without the wait - or the waste. Low operating cost - High energy efficiency and water savings setting.
BrandRheem #ad
ManufacturerRheem #ad
Height28.5 Inches
Length27.5 Inches
Weight77 Pounds
Width9.75 Inches
Part NumberRTGH-68DVLN-2
ModelRTGH-68DVLN-2

7. EZ Tankless

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

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

8. Rheem

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RTGH-95XLN-2, Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.5 GPM

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Rheem #ad - Space savings - compact, space-saving design. Low operating cost - High energy efficiency and water savings setting. For use outdoors with freeze protection up to -30 degrees. Hot water without the wait - or the waste. Water & gas leak detection will shut down unit and provide an error code. Perfect for a tank replacement.
BrandRheem #ad
ManufacturerRheem #ad
Height28.5 Inches
Length27.5 Inches
Weight77 Pounds
Width9.75 Inches
Part NumberRTGH-95XLN-2
ModelRTGH-95XLN-2

9. Rinnai

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Up to 9.8 GPM, Indoor Installation, Rinnai RL94iN Non-Condensing Natural Gas Tankless Water Heater

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Rinnai #ad - Original design: tankless hot water heater's circ-logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE180iN model. Find your rinnai: see our product guides, warranty information, energy guide, videos, manuals, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region.

Never run out of hot water with this compact tankless gas water heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9. 8 gpm 6 fixtures at once.

Professional installation recommended: visit the find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician. Smart, 5-, and 1-year residential guarantee and 5-, and parts, and 1-year commercial factory warranty for heat exchanger, 5-, labor, durable design: includes 12-, respectively; See Controlr module for WiFi control not included.
BrandRinnai #ad
ManufacturerRinnai #ad
Height31 Inches
Length17.5 Inches
Weight54.78 Pounds
Width13 Inches
Part NumberRL94iN
ModelRL94IN
WarrantySee Manufacturer

10. 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 - High Efficiency. Endless hot water. Can be vented with Schedule 40 PVC Pipe and Fitting. Low Nox. Remote thermostat & 6' power cord included.
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