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Natural Gas (NG) Tankless Water Heaters

  • Navien NCB-210E Condensing Combination Water Heater-Boiler
    Navien NCB-210E Condensing Combination Water Heater-Boiler
    Original price $3,372.00 - Original price $3,391.95
    Original price
    $3,372.00
    $3,372.00 - $3,391.95
    Current price $3,372.00

    Navien NCB-210E Condensing Combination Water Heater-Boiler

    Navien America

    Current stock level: In stock as of Ship out time: Within 1 business day.Delivery time: 1 to 3 business days to most addresses The NCB-210E is th...

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    Original price $3,372.00 - Original price $3,391.95
    Original price
    $3,372.00
    $3,372.00 - $3,391.95
    Current price $3,372.00
  • Wall plate for Navien HotButton, part number GXXX001427
    Original price $2.95 - Original price $7.90
    Original price
    $2.95 - $7.90
    $2.95 - $7.90
    Current price $2.95

    Wall plate for Navien HotButton, part number GXXX001427

    Navien America

    Wall plate (only) for push button for the on-demand Navien HotButton All items for sale on GadgetsGo.com are genuine and new, not used. The NAVIEN...

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    Original price $2.95 - Original price $7.90
    Original price
    $2.95 - $7.90
    $2.95 - $7.90
    Current price $2.95
  • Marey Power Gas 16L NG Tankless Water Heater
    Original price $499.00 - Original price $503.95
    Original price
    $499.00 - $503.95
    $499.00 - $503.95
    Current price $499.00

    Marey 16L NG-Natural Gas Tankless Water Heater, Digital-LCD Panel

    Marey Heater Corp.

    The Marey 16L for Natural Gas is one of the least expensive, highest quality, tankless water heaters in its class. Power goes out in your home? Yo...

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    Original price $499.00 - Original price $503.95
    Original price
    $499.00 - $503.95
    $499.00 - $503.95
    Current price $499.00
  • Original price $349.00 - Original price $353.95
    Original price
    $349.00 - $353.95
    $349.00 - $353.95
    Current price $349.00

    Eccotemp i12-NG Natural Gas Indoor Tankless Water Heater

    Eccotemp

    Eccotemp i12-NG Natural Gas Indoor Tankless Water Heater Eccotemp created the i12-NG Natural Gas powered water heater with top-of-class design. It...

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    Original price $349.00 - Original price $353.95
    Original price
    $349.00 - $353.95
    $349.00 - $353.95
    Current price $349.00
  • inside Navien NFC-175 Fire-tube Combi Boiler Water Heater
    shipping box, Navien NFC-175 Fire-tube Combi Boiler Water Heater
    Original price $3,680.00 - Original price $3,699.95
    Original price
    $3,680.00 - $3,699.95
    $3,680.00 - $3,699.95
    Current price $3,680.00

    Navien NFC-175 Fire-tube Condensing Combination Water Heater-Boiler

    Navien America

    Current stock level: In stock as of Ship out time: Within 1 business day.Delivery time: 1 to 5 business days to most addresses Navien's NFC-175 f...

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    Original price $3,680.00 - Original price $3,699.95
    Original price
    $3,680.00 - $3,699.95
    $3,680.00 - $3,699.95
    Current price $3,680.00
  • Original price $123.93 - Original price $128.88
    Original price
    $123.93 - $128.88
    $123.93 - $128.88
    Current price $123.93

    Navien H2Air ComfortAir+ Kit AHU Optimizer PNBD-000001, NPE-A models

    Navien America

    Combination space heating and DHW system using NPE-A Series condensing tankless water heaters The Navien H2Air ComfortAir+ Kit is an add-on accesso...

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    Original price $123.93 - Original price $128.88
    Original price
    $123.93 - $128.88
    $123.93 - $128.88
    Current price $123.93
  • Original price $2,100.00 - Original price $2,119.95
    Original price
    $2,100.00
    $2,100.00 - $2,119.95
    Current price $2,100.00

    Navien NCB-150E Condensing Combination Water Heater-Boiler

    Navien America

    Current stock level: In stock as of Ship out time: Within 1 business day.Delivery time: 1 to 3 business days to most addresses The NCB-150E is one...

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    Original price $2,100.00 - Original price $2,119.95
    Original price
    $2,100.00
    $2,100.00 - $2,119.95
    Current price $2,100.00
  • Takagi T-K4 IndoorPropane/NG Tankless Water Heater
    Takagi T-K4 Propane/NG Tankless Water Heater
    Original price $749.00 - Original price $829.00
    Original price
    $749.00
    $749.00 - $829.00
    Current price $749.00

    Takagi T-K4 Indoor-Outdoor Propane-NG Tankless Water Heater

    Takagi

    This efficient and compact tankless water heater is the perfect hot water solution for your home. The Takagi T-K4 is a gas fired, fully modulating...

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    Original price $749.00 - Original price $829.00
    Original price
    $749.00
    $749.00 - $829.00
    Current price $749.00
  • Original price $1,638.00 - Original price $1,638.00
    Original price
    $1,638.00
    $1,638.00 - $1,638.00
    Current price $1,638.00

    State Industries GTS-540H Series Tankless Water Heater Ultra-Low NOx Condensing

    State Water Heaters

    Get an endless supply of hot water from a compact, wall-mounted tankless water heater that will afford you substantial savings in energy costs. Th...

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    Original price $1,638.00 - Original price $1,638.00
    Original price
    $1,638.00
    $1,638.00 - $1,638.00
    Current price $1,638.00
  • Original price $2,814.70 - Original price $2,834.65
    Original price
    $2,814.70 - $2,834.65
    $2,814.70 - $2,834.65
    Current price $2,814.70

    Navien NCB-180 Condensing Gas Combination Boiler

    Navien America

    Combination Boiler: Where Technology Meets Ecology → Heats water only when needed, making it environmentally sound and cost efficient.→ The ideal s...

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    Original price $2,814.70 - Original price $2,834.65
    Original price
    $2,814.70 - $2,834.65
    $2,814.70 - $2,834.65
    Current price $2,814.70
  • Rinnai V65iN Indoor Natural Gas Tankless Gas Water Heater
    Original price $1,191.00 - Original price $1,210.95
    Original price
    $1,191.00 - $1,210.95
    $1,191.00 - $1,210.95
    Current price $1,191.00

    Rinnai V65iN Indoor Natural Gas Tankless Gas Water Heater

    Rinnai

    Rinnai's V65iN tankless water heater delivers up to 6.6 GPM (gallons per minute) of hot water efficiently, making it perfect for houses that have ...

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    Original price $1,191.00 - Original price $1,210.95
    Original price
    $1,191.00 - $1,210.95
    $1,191.00 - $1,210.95
    Current price $1,191.00
  • Original price $629.00 - Original price $629.00
    Original price
    $629.00
    $629.00 - $629.00
    Current price $629.00

    Takagi TK-110U Indoor-Outdoor NG-LP UltraLow NOx Tankless Water Heater

    Takagi

    Modulating, compact, wall-mounted tankless water heater with ultra-low pollution emissions The TK-110U is perfect for apartments, summer cabins, c...

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    Original price $629.00 - Original price $629.00
    Original price
    $629.00
    $629.00 - $629.00
    Current price $629.00
  • Original price $2,269.00 - Original price $2,288.95
    Original price
    $2,269.00 - $2,288.95
    $2,269.00 - $2,288.95
    Current price $2,269.00

    Navien NCB-210 Condensing Gas Combination Boiler

    Navien America

    Combination Boiler: Where Technology Meets Ecology → Heats water only when needed, making it environmentally sound and cost efficient.→ The ideal s...

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    Original price $2,269.00 - Original price $2,288.95
    Original price
    $2,269.00 - $2,288.95
    $2,269.00 - $2,288.95
    Current price $2,269.00
  • Original price $589.00 - Original price $593.95
    Original price
    $589.00 - $593.95
    $589.00 - $593.95
    Current price $589.00

    Eccotemp 45HI-NG Indoor Natural Gas Tankless Water Heater

    Eccotemp

    140,000 BTU heater for homes with up to 2 bathrooms The 45HI is the indoor equivalent of the 45H Eccotemp outdoor tankless water heater. It is desi...

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    Original price $589.00 - Original price $593.95
    Original price
    $589.00 - $593.95
    $589.00 - $593.95
    Current price $589.00
  • Original price $989.95 - Original price $1,079.90
    Original price
    $989.95 - $1,079.90
    $989.95 - $1,079.90
    Current price $989.95

    Waiwela-Paloma PH2-28RDVSLN Indoor Natural Gas Tankless Water Heater

    Waiwela

    The PH2-28 is an excellent water heating solution for average 2-bath to 3-bath homes. The PH2-28RDVS can support up to 2 to 3 major hot water appli...

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    Original price $989.95 - Original price $1,079.90
    Original price
    $989.95 - $1,079.90
    $989.95 - $1,079.90
    Current price $989.95
  • Original price $1,049.00 - Original price $1,049.00
    Original price
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00

    Takagi TK-510U Indoor-Outdoor NG-LP Ultra Low NOx 199K BTU Tankless

    Takagi

    Modulating, compact, wall-mounted tankless water heater.Whole-house for multiple simultaneous points of use. Commercial applications, too.Ultra-lo...

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    Original price $1,049.00 - Original price $1,049.00
    Original price
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00
  • Original price $1,174.12 - Original price $1,194.07
    Original price
    $1,174.12 - $1,194.07
    $1,174.12 - $1,194.07
    Current price $1,174.12

    AO Smith ATI-540H-N Indoor NG Ultra-Low NOx Condensing Tankless

    A. O. Smith

    199,000 BTU tankless gas water heater with Ultra-Low NOx emissionsEasy, inexpensive venting with PVC Features • Primary heat exchanger is construct...

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    Original price $1,174.12 - Original price $1,194.07
    Original price
    $1,174.12 - $1,194.07
    $1,174.12 - $1,194.07
    Current price $1,174.12
  • Original price $1,578.00 - Original price $1,597.95
    Original price
    $1,578.00 - $1,597.95
    $1,578.00 - $1,597.95
    Current price $1,578.00

    Rinnai RL75iN Indoor Natural Gas Tankless Water Heater

    Rinnai

    Stop planning your evenings and mornings around your water heater. Now, you can set your own schedule, all thanks to the RL75iN. Ideal for 2 to 3...

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    Original price $1,578.00 - Original price $1,597.95
    Original price
    $1,578.00 - $1,597.95
    $1,578.00 - $1,597.95
    Current price $1,578.00
  • Original price $2,333.00 - Original price $2,352.95
    Original price
    $2,333.00 - $2,352.95
    $2,333.00 - $2,352.95
    Current price $2,333.00

    Rinnai RU199iN 199K BTU Indoor Natural Gas Tankless Water Heater

    Rinnai

    More hot water, faster with the Rinnai Sensei series The Rinnai Sensei series features an enhanced combustion design, to provide a better experie...

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    Original price $2,333.00 - Original price $2,352.95
    Original price
    $2,333.00 - $2,352.95
    $2,333.00 - $2,352.95
    Current price $2,333.00
  • Sold out
    Original price $429.00 - Original price $433.95
    Original price
    $429.00 - $433.95
    $429.00 - $433.95
    Current price $429.00

    Eccotemp 40H-NG Natural Gas Outdoor Tankless Water Heater

    Eccotemp

    The Eccotemp 40H-NG tankless hot water heater provides the hot water you need at an affordable price.The Eccotemp 40H-NG is a natural gas, 6.3 ...

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    Original price $429.00 - Original price $433.95
    Original price
    $429.00 - $433.95
    $429.00 - $433.95
    Current price $429.00
    Sold out
  • Sold out
    Original price $269.00 - Original price $273.95
    Original price
    $269.00 - $273.95
    $269.00 - $273.95
    Current price $269.00

    Eccotemp FVI12-NG Indoor Tankless Water Heater

    Eccotemp

    The Eccotemp FVI12-NG Indoor Tankless Heater is a natural gas powered indoor tankless water heater designed specifically to produce small...

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    Original price $269.00 - Original price $273.95
    Original price
    $269.00 - $273.95
    $269.00 - $273.95
    Current price $269.00
    Sold out
  • Original price $1,349.00 - Original price $1,368.95
    Original price
    $1,349.00
    $1,349.00 - $1,368.95
    Current price $1,349.00

    Noritz NR98-SV 9.8 GPM Natural Gas Indoors Tankless Water Heater

    Noritz

    Model NR-98-SV (GQ-2857WX-F US) Residential Tankless Water HeaterNon-condensing, Natural Gas, Single Vent With plenty of power to heat multiple poi...

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    Original price $1,349.00 - Original price $1,368.95
    Original price
    $1,349.00
    $1,349.00 - $1,368.95
    Current price $1,349.00
  • Original price $1,454.00 - Original price $1,473.95
    Original price
    $1,454.00 - $1,473.95
    $1,454.00 - $1,473.95
    Current price $1,454.00

    Rinnai V75iN Indoor Natural Gas Tankless Water Heater

    Rinnai

    Rinnai's V75iN tankless water heater delivers up to 7.5 GPM (gallons per minute) of hot water efficiently, making it perfect for houses that have...

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    Original price $1,454.00 - Original price $1,473.95
    Original price
    $1,454.00 - $1,473.95
    $1,454.00 - $1,473.95
    Current price $1,454.00
  • Marey 170K BTU 8.34 GPM LP Propane Indoor Tankless Water Heater
    Original price $659.99 - Original price $679.94
    Original price
    $659.99 - $679.94
    $659.99 - $679.94
    Current price $659.99

    Marey 170K BTU 8.34 GPM Natural Gas Tankless Water Heater GA24CSANG

    Marey Heater Corp.

    The one tankless water heater that checks all the boxes:√ 170,000 BTU powerful enough for most homes with multiple, simultaneous points of use.√ ...

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    Original price $659.99 - Original price $679.94
    Original price
    $659.99 - $679.94
    $659.99 - $679.94
    Current price $659.99