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Gas Tankless Heaters

Bosch Tankless Water Heaters for whole house and point-of-use commercial and residential applications in Natural Gas and Liquid Propane. The expanded and advanced line of Bosch Therm tankless water heaters includes Non-Condensing tankless water heaters with more compact models and greater installation versatility - to satisfy all your residential applications.

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  1. Bosch AquaStar 125 BO NG (Natural Gas) Outdoor Whole-House Tankless Water Heater

    Bosch AquaStar 125 BO NG (Natural Gas) Outdoor

    Bosch AquaStar 125BO-NG (Natural Gas) outdoor whole-house tankless water heater

    117,000 BTUs, Standing Pilot Light Learn More

    Regular Price: $1,999.00

    Special Price: $1,899.00

    Details
  2. Bosch Therm 940 ESO NG (Natural Gas) Outdoor Whole-House Tankless Water Heater

    Bosch Therm 940 ESO NG (Natural Gas) - Outdoor

    Bosch Therm 940ESO-NG (Natural Gas) whole-house outdoor tankless water heater

    199,000 BTUs and up to 140 degrees F, Electronic Ignition, Energy Star Learn More

    Regular Price: $1,525.00

    Special Price: $1,155.00

    Details
  3. Bosch Therm 940 ESO LP (Liquid Propane) Outdoor Whole-House Tankless Water Heater

    Bosch Therm 940 ESO LP (Liquid Propane) - Outdoor

    Bosch Therm 940ESO-LP (Liquid Propane) whole-house outdoor tankless water heater

    199,000 BTUs and up to 140 degrees F, Electronic Ignition, Energy Star Learn More

    Regular Price: $1,525.00

    Special Price: $1,155.00

    Details
  4. Takagi T-K4-OS-L (Liquid Propane)) Whole-House Outdoor Tankless Water Heater

    Takagi T K4 OS L (Liquid Propane)

    Takagi T-K4-OS-L (Liquid Propane)) Whole-House Outdoor Tankless Water Heater

    190,000 BTUs and up to 167 degrees F, Electronic Ignition, Outdoor Learn More

    Regular Price: $899.00

    Special Price: $775.00

    Details
  5. Takagi T-K4-OS-N (Natural Gas) Whole-House Outdoor Tankless Water Heater

    Takagi T K4 OS N (Natural Gas)

    Takagi T-K4-OS-N (Natural Gas) Whole-House Outdoor Tankless Water Heater

    190,000 BTUs and up to 167 degrees F, Electronic Ignition, Outdoor Learn More

    Regular Price: $899.00

    Special Price: $775.00

    Details
  6. Takagi T-KJR2-OS-N (Natural Gas) Whole-House Outdoor Tankless Water Heater

    Takagi T KJR2 OS N (Natural Gas)

    Takagi T-KJR2-OS-N (Natural Gas) Whole-House Outdoor Tankless Water Heater

    140,000 BTUs and up to 167 degrees F, Electronic Ignition, Outdoor Learn More

    Regular Price: $775.00

    Special Price: $525.00

    Details
  7. Takagi T-KJR2-OS-L (Liquid Propane) Whole-House Outdoor Tankless Water Heater

    Takagi T KJR2 OS L (Liquid Propane)

    Takagi T-KJR2-OS-L (Liquid Propane) Whole-House Outdoor Tankless Water Heater

    140,000 BTUs and up to 167 degrees F, Electronic Ignition, Outdoor Learn More

    Regular Price: $775.00

    Special Price: $525.00

    Details

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