Takagi TH3SDV-LP

Liquid Propane TH3 Series 180000 BTU Direct Vent Indoor Whole House Tankless Water Heater

Item # BCI2103940   |   Model # TH3SDV-LP   |  TH3 Collection

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Liquid Propane
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TH3 Series 180000 BTU Direct Vent Indoor Whole House Tankless Water Heater

This condensing high efficiency gas tankless water heater sets the standard in both form and function. Energy Star qualified with an energy factor of .95, a built-in temperature controller with advanced diagnositics, and a heat exchanger constructed of commercial grade copper are only a few of the features that combine to assure you never take another cold shower, or waste money while uncomfortably waiting for one. With specifications such as zero clearance venting and an outstanding output of 180,000 BTU's and up to 150 psi of water pressure, it's difficult not to appreciate every aspect of this appliance that is designed to smile back at you.

Direct Vent:The TH3SDV direct vent tankless water heater enables your system to be installed in tight spaces indoors without the worry of combustion. Coupled with an allowable PVC venting system, this condensing tankless water heater requires little space, as it draws and expels its air from outside. All of this functionality and efficiency are seamlessly controlled by a self-diagnostic computer system and controller, making it simple enough for anyone to use.


  • Capacity: 2-3 Showers (Depending on Climage)
  • Energy Star Qualified
  • Commercial-Grade Copper Primary Heat Exchanger
  • Effecient, Durable and Easy to Install
  • PVC Venting and 0 Inch Clearance
  • Complies with Lead Free Standards
  • Includes Built-in Temperature Controller and Diagnostics
  • 3 or 4 Inch Venting
  • Up to 8 Gallons Per Minute
  • Acceptable for up to 4 Showers


  • Energy Factor: .95
  • BTU: 15,000-180,000
  • Gas and Water Connections: 3/4" NPT
  • Weight: 58 Pounds
  • Dimensions: 22.5" H x 17.75" W x 10.75" D
  • Water Pressure: 15-150 PSI
  • Ignition: Electric


  • PVC Venting
  • 3" Venting up to 70 ft
  • 4" Venting up to 100 ft
  • 0" Clearance
  • Electric Ignition


  • Built-in Temperature Remote Control (Included)
  • 9007674005 or 9007671005- Pipe Cover
  • TH-NT01- Neutralizer Kit
  • 9007998005 - Wall Thimble with Hood 4"-7"
  • 9007604005 - Lead Free Isolation Valves


Additional Takagi Links

This Takagi item can also be referenced by the following color/finish specific model #:

  • Takagi TH3SDV-LP
    Liquid Propane
  • Takagi TH3SDV-NG
    Natural Gas

*Discontinued model or finish

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