Takagi TH3DV TH3 Series 199000 BTU Direct Vent Indoor Whole House Tankless Water Heater

- Item #: BCI2121705

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TH3 Series 199000 BTU Direct Vent Indoor Whole House Tankless Water Heater

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: 3-4 Showers (depending on Climate)
  • Energy Star Qualified
  • Commercial-Grade Copper Primary Heat Exchanger
  • Effecient, Durable and Easy to Install
  • Complies with Lead Free Standards
  • Includes Built-in Temperature Controller and Diagnostics
  • Up to 10 Gallons Per Minute


  • Energy Factor: .95
  • BTU: 15,000-199,000
  • Gas and Water Connections: 3/4" NPT
  • Weight: 59 Pounds
  • Dimensions: 22.5" H x 17.75" W x 10.75" D
  • Water Pressure: 15-150 PSI
  • Ignition: Electric


  • PVC Venting
  • 4" Backflow preventer and F-F adapter
  • 3" PVC Venting up to 100 ft
  • 0" Clearance
  • Electric Ignition


  • S9007611005- 3" PVC Concentric Termination (Indoor Models Only)
  • 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

Our SKU: Takagi TH3DV

This product is listed under the following manufacturer number(s):

  • Takagi TH3DV-LP
    Liquid Propane
  • Takagi TH3DV-NG
    Natural Gas

*Denotes a finish or option that has been discontinued

Takagi TH3DV Product Specifications

Configuration Tankless Water Heater
Depth 10.75
Direct Vent Yes
Duct Size 3" Round, 4" Round
Electronic Ignition Type Yes
Energy Star Yes
Fuel Type Liquid Propane, Natural Gas
Function Condensing
Gas Connection 3/4"
Height 22.5
Indoor Approved Yes
Indoor Installation Yes
LP Energy Factor .95
Liquid Propane Input (Min) 13000
Liquid Propane Manifold Pressure 4.5 WC
Low Lead Compliant Yes
Maximum Gas Input 199000
Maximum Vent Length 100 ft, 70 ft
NG Energy Factor .95
Natural Gas Input (Max) 199000
Natural Gas Input (Min) 15000
Natural Gas Manifold Pressure 2.5
Natural Gas Pressure (Max) 2
Outdoor Approved No
Outdoor Installation No
Plug In No
Power Supply AC 120V
Product Weight 59
Width 17.75

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

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