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

    Brand & Part #: Takagi T-K4-OS-LP SKU #: taktk4oslp

    Availability : In stock

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    Regular Price: Was: $1,230.00


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    Manufacturer Info

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    Additional Documents

    Product Specifications

    Helpful Information



    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

    Additional Info

    Additional Info

    MPN T-K4-OS-LP
    Brands Takagi
    Install Location Outdoor
    Fuel Type Liquid Propane
    GPM (Flow Rate) 8.00
    BTU Input 175,000 - 200,000


    Customer Reviews (1)

    GreatReview by Al navas
    I had the Tk3 for a number of years and the company does not make this model any more. they make the TK4, found it at home perfect for a better price than my original. Shipped and arrived in 5 days. installed the next day, we are happy.

    thank you.
    (Posted on 4/22/2015)
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