Similar Products to:Navien NR240NG

 

NR2-40-NG Condensing Tankless Water Heater Natural Gas

$1,549.00 View This Product
Sort By:

Filter by Color: Filter by Brand: Filter by Type: Filter by Fuel Type:
  • Drakken AHS24D
    Drakken AHS24D

    AHS24D AH Pro-Performer Electric Whole House Water Heater with Intelligent Electronic Controls, Stainless Steel Exchangers and USB Diagnostics: 24 KW

    $776.99
    View This Product
  • Drakken AHS21D
    Drakken AHS21D

    AHS21D AH Pro-Performer Electric Whole House Water Heater with Intelligent Electronic Controls, Stainless Steel Exchangers and USB Diagnostics: 21 KW

    $755.99
    View This Product
  • Drakken AHS27D
    Drakken AHS27D

    AHS27D AH Pro-Performer Electric Whole House Water Heater with Intelligent Electronic Controls, Stainless Steel Exchangers and USB Diagnostics: 27 KW

    $797.99
    View This Product
  • Takagi TH3OSNG
    Takagi TH3OSNG

    T-H3-OS-NG Natural Gas Outdoor Tankless Water Heater with Energy Factor of .95, Remote Control, Multi-Link up to 20 with a Multi-Unit Controller

    $1,568.00
    View This Product
  • Takagi TM50NG
    Takagi TM50NG

    T-M50-NG 25" Natural Gas Tankless Water Heater With Max 380,000 BTU/h, Electronic Ignition, Internal Pump Control Port, Air-Fuel Ratio Rod, Flame Sensor, Built In Freeze Protection, In White

    $3,982.00
    View This Product
  • Bosch 940ESNG
    Bosch 940ESNG

    Therm 940ESNG 18" Natural Gas Tankless Water Heater With 199,000 BTU Max Input, Energy Star Rated, Electronic Ignition, 150 PSI Max Water Pressure, Non-Condensing, In Grey

    $1,210.00 $1,089.00
    View This Product
  • Takagi TH3JOSNG
    Takagi TH3JOSNG

    TH3JOSNG Natural Gas Outdoor Tankless Water Heater with Energy Factor of .95, Remote Control, Multi-Link up to 20 with a Multi-Unit Controller

    $1,248.00
    View This Product
  • Takagi TM50ASMENG
    Takagi TM50ASMENG

    T-M50-NG-ASME 25" Natural Gas Tankless Water Heater With Max 380,000 BTU/h, Electronic Ignition, Internal Pump Control Port, Air-Fuel Ratio Rod, Built In Freeze Protection, ASME, In White

    $3,499.00
    View This Product
  • Bosch C1210ESNG
    Bosch C1210ESNG

    Therm C1210ESNG 18" Natural Gas Tankless Water Heater With 225,000 BTU Max Input, Electronic Ignition, Built In Freeze Protection, 150 PSI Max Water Pressure, Condensing, In Grey

    $2,098.89 $1,889.00
    View This Product
  • Bosch 830ESNG
    Bosch 830ESNG

    Therm 830ESNG 18" Natural Gas Tankless Water Heater With 175,000 Max Input BTU, Non Condensing Technology, 150 PSI Max Water Pressure, Energy Star Rated, Electronic Ignition, In Grey

    $1,032.22 $929.00
    View This Product
  • AO Smith GCRL50
    AO Smith GCRL50

    GCRL50 ProMax 50 Gallon Residential Gas Water Heater with Green Choice Gas Burner, Heat Trap Nipples, Blue Diamond Glass Coating, and DynaClean Diffuser Dip Tube

    $649.00
    View This Product
  • AO Smith SMIGCRT50
    AO Smith SMIGCRT50

    SMIGCRT-50 Residential Gas Water Heater with 50 Gallon Capacity, Intelligent Control Logic and Green Choice 50,000 BTU Gas Burner

    $739.99
    View This Product
  • Williamson-Thermoflo GWA210NTS2
    Williamson-Thermoflo GWA210NTS2

    GWA-210-N-T-S2 Gas Water Atmospheric Boiler with 210000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $2,314.00
    View This Product
  • Takagi TH3DVNG
    Takagi TH3DVNG

    TH3DVNG 199000 BTU Direct Vent Indoor Natural Gas Tankless Water Heater, for Home or Commercial Use, with Energy Star Rating, Electronic Ignition, Built-in Temperature Control, and High Durability

    $1,568.00
    View This Product
  • AO Smith SMIFCG75
    AO Smith SMIFCG75

    SMIFCG75 74 Gallon ProMax High Recovery 6 Year Warranty Residential Water Heater (Nat Gas)

    $999.99
    View This Product
  • Takagi TH3SDVNG
    Takagi TH3SDVNG

    TH3SDVNG Indoor High Efficiency Condensing Tankless Natural Gas Water Heater, with Energy Star Rating, 8.0 Max GPM, Erosion Resistant Heat Exchanger, Temperature Control, and Electronic Ignition

    $1,408.00
    View This Product
  • AO Smith GPVX75L
    AO Smith GPVX75L

    GPVX-75L 75 Gallon - 72,000 BTU ProMax Power Vent Residential Natural Gas Water Heater with Side Connection

    $1,279.00
    View This Product
  • Williamson-Thermoflo GWA140NTS2
    Williamson-Thermoflo GWA140NTS2

    GWA-140-N-T-S2 Gas Water Atmospheric Boiler with 140000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $1,845.00
    View This Product
  • AO Smith PCG75
    AO Smith PCG75

    PCG75 61" High 74 Gallon ProMax High Recovery 10 Yr Warranty Residential Water Heater (Nat Gas)

    $984.99
    View This Product
  • Williamson-Thermoflo GWA245NTS2
    Williamson-Thermoflo GWA245NTS2

    GWA-245-N-T-S2 Gas Water Atmospheric Boiler with 245000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $2,524.00
    View This Product
  • Takagi TK4INNG
    Takagi TK4INNG

    T-K4-IN-NG 8.0 GPM Natural Gas Indoor Tankless Water Heater from the Tankless Collection

    $1,064.00
    View This Product
  • Williamson-Thermoflo GWA105NTS2
    Williamson-Thermoflo GWA105NTS2

    GWA-105-N-T-S2 Gas Water Atmospheric Boiler with 105000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $1,649.00
    View This Product
  • Takagi TKJR2INNG
    Takagi TKJR2INNG

    T-KJr2-INNG Tankless Indoor Water Heater (Natural Gas)

    $819.00
    View This Product
  • Takagi TH2OSNG
    Takagi TH2OSNG

    T-H2-OS-NG 9.0 GPM Natural Gas or Liquid Propane Indoor Tankless Water Heater 9.0 GPM from the Tankless Collection

    $1,377.00
    View This Product
  • Takagi TD2OSNG
    Takagi TD2OSNG

    T-D2-OS-NG 10.0 GPM Commercial Natural Gas or Liquid Propane Outdoor Tankless Water Heater from the Tankless Collection

    $1,312.00
    View This Product
  • Williamson-Thermoflo GWA070NTS2
    Williamson-Thermoflo GWA070NTS2

    GWA-070-N-T-S2 Gas Water Atmospheric Boiler with 70000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $1,399.00
    View This Product
  • Williamson-Thermoflo GWA175NTS2
    Williamson-Thermoflo GWA175NTS2

    GWA-175-N-T-S2 Gas Water Atmospheric Boiler with 175000 BTU Input, Stainless Steel Burners, Automatic Vent Damper and Cast Iron Sections with Built-In Air Separator, in Green

    $2,094.00
    View This Product
  • Takagi TK4OSNG
    Takagi TK4OSNG

    T-K4-OS-NG Tankless Outdoor Water Heater: Natural Gas

    $1,072.00
    View This Product
  • AO Smith BTH120
    AO Smith BTH120

    BTH-120 60 Gallon - 120,000 BTU Cyclone Xi Commercial Gas Water Heater

    $4,499.00
    View This Product
  • AO Smith GPDX75L
    AO Smith GPDX75L

    GPDX-75L 75 Gallon ProMax Power Direct Vent Water Heater with Side Connections: Natural Gas

    $1,899.00
    View This Product
  • Takagi TD2INNG
    Takagi TD2INNG

    T-D2-IN-NG Tankless Collection 10.0 GPM Commercial Indoor Tankless Water Heater: Natural Gas

    $1,336.00
    View This Product
  • Drakken S12
    Drakken S12

    S-12 iHeat ADK S Series 12.4 KW Electric Tankless Water Heater with Digital Display Control Pad, Easy Grip Fittings, Advanced Power Modulation and Water Proof Stainless Steel Construction: 220V/56A

    $337.99
    View This Product
  • Takagi TM50LP
    Takagi TM50LP

    T-M50-LP 25" Liquid Propane Tankless Water Heater With Max 380,000 BTU/h, Electronic Ignition, Internal Pump Control Port, Air-Fuel Ratio Rod, Flame Sensor, Built In Freeze Protection, In White

    $3,982.00
    View This Product
  • Drakken AHS16D
    Drakken AHS16D

    AHS16D AH Pro-Performer Electric Whole House Water Heater with Intelligent Electronic Controls, Stainless Steel Exchangers and USB Diagnostics: 16 KW

    $655.99
    View This Product
  • Bosch 830ESLP
    Bosch 830ESLP

    Therm 830ESLP 18" Liquid Propane Gas Tankless Water Heater With 175,000 Max Input BTU, Non Condensing Technology, 150 PSI Max Water Pressure, Energy Star Rated, Electronic Ignition, In Grey

    $1,032.22 $929.00
    View This Product
  • Atmor AT90008
    Atmor AT90008

    AT900-08 Point-of-Use Tankless Electric Instant Water Heater, 8.5 kW / 240V

    $139.99
    View This Product
  • Drakken A67
    Drakken A67

    A-67 iHeat Hot Spot A Series 6 KW Electric Tankless Water Heater with 48 Gallon Activation Flow Rate, LED Temperature Indicator Lights and Safety Thermostatic Cut Off: 240V

    $229.99
    View This Product
  • Drakken AHSH2500
    Drakken AHSH2500

    AHSH2500 iHeat Hot Spot AHSH Series 2.5 KW Electric Tankless Shower Head Heater with Safety Thermostatic Cut off, LED Indicator Lights and Stainless Steel Heat Exchanger: 110V

    $115.99
    View This Product
  • Bosch WH17
    Bosch WH17

    Tronic 5000 WH17 16" Whole House Electric Tankless Water Heater With 0.6 GPM Activation Flow Rate, Filter Screen On Inlet, Electronic Flow Sensor, 97% Efficiency Rating, In Grey

    $510.00 $459.00
    View This Product
  • Drakken S9
    Drakken S9

    S-9 iHeat ADK S Series 8.9 KW Electric Tankless Water Heater with Digital Display Control Pad, Easy Grip Fittings, Advanced Power Modulation and Water Proof Stainless Steel Construction: 220V /41A

    $329.99
    View This Product
  • Drakken AHS14D
    Drakken AHS14D

    AHS14D AH Pro-Performer Electric Whole House Water Heater with Intelligent Electronic Controls, Stainless Steel Exchangers and USB Diagnostics: 14 KW

    $635.99
    View This Product
  • Atmor AT90006
    Atmor AT90006

    AT900-06 Point-of-Use Tankless Electric Instant Water Heater, 6.5 kW / 240V

    $134.99
    View This Product
  • Drakken A35
    Drakken A35

    A-35 iHeat Hot Spot A Series 3.5 KW Electric Tankless Water Heater with 48 Gallon Activation Flow Rate, LED Temperature Indicator Lights and Safety Thermostatic Cut Off: 120V

    $214.99
    View This Product
  • Drakken S16
    Drakken S16

    S-16 iHeat ADK S Series 16 KW Electric Tankless Water Heater with Digital Display Control Pad, Easy Grip Fittings, Advanced Power Modulation and Water Proof Stainless Steel Construction: 240V/66A

    $405.99
    View This Product