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Takagi T-K4-OS LP Liquid Propane Outdoor Tankless Water Heater

Brand & Part #: Takagi T-K4-OS-LP

Our SKU #: taktk4oslp

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Description For Takagi T-K4-OS-LP

Manufacturer Info

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Additional Documents

Product Specifications

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Released in 2010, the T-K4 improves upon many of the features from the T-K3. The T-K4 is one of Takagi's smaller tankless water heaters. At 13.8 inches wide and weighing only 38 pounds, its ultra-compact design allows it to be mounted on a wall.

Takagi's newest tankless water heater also features an energy factor of 0.82, so it is extremely efficient and environmentally friendly. Since tankless water heaters only burn gas when hot water is needed, installing this unit can help homeowners save up to 45% on their monthly gas bills.

The T-K4-OS has a built-in power venting system and was designed specifically for outdoor installations. The T-K4-OS does not require any additional Category III venting or vent caps, making installation one step easier for installers.


  • Capacity: 2 to 3 Bathrooms
  • Flow Rate: Maximum 8.0 GPM
  • Gas Inputs: 11,000 to 190,000 BTU per hour
  • Energy Factor Rating: 0.83
  • Inlet Gas Pressure: Min: 8.0" W.C. / Max 14.0" W.C.
  • Dimensions: 20.3" H x 13.8" W x 8.5" D
  • No Venting Required
  • Electric Ignition

TK-REO2 Remote Control is included

Application: 2-3 Showers
Product Type: Tankless Heater
Fuel Type: Propane
Installation Type: Outdoor Only
Energy Factor: 0.83
Inlet Gas Pressure: 8.0"-14.0"W.C.

Warranty: 12 Year Ltd. Warranty on Heat Exchanger/ 5 Year on Parts
Energy Star Rated: Yes
Height: 20.3"
Width: 13.8"
Depth (Inches): 8.5"
Max Flow (GPM): 8
Voltage: 120v
Gas Input: 11000-190000 BTU/h
Water Connection: 3/4"
Gas Connection: 3/4"
Temperature Range (F): 99°-167°F
PSI Range: 15-150 psi
Weight (lbs): 38 lbs

Takagi T-K4-OS-LP is also known as T-K4-OS LP , TK4OSLP

Takagi T-K4-OS LP Liquid Propane Outdoor Tankless Water Heater

Image shown may differ from actual product appearance especially finish and color.

Product Details

UPC 671657108281
brand Takagi
Water Heater Type Tankless Water Heaters
Fuel Type Liquid Propane
Install Location Outdoor
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