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Takagi T-K4-IN-LP Liquid Propane Indoor Tankless Water Heater

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

Our SKU #: taktk4inlp

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Description For Takagi T-K4-IN-LP

Manufacturer Info

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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.


  • Capacity: 2 to 3 Bathrooms
  • Flow Rate: Maximum 8.0 GPM
  • Gas Inputs: 11,000 to 190,000 BTU per hour
  • Energy Factor Rating: 0.82
  • 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
  • Direct Vent Capability
  • Electric Ignition



Application: 2-3 Showers
Product Type: Tankless Heater
Fuel Type: Propane
Installation Type: Indoor Only

Direct Vent Convertible
Energy Factor: 0.82
Vent Size: 4"
Vent Type: Category III Stainless Steel
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-IN-LP is also known as T-K4-IN LP , TK4INLP

Takagi T-K4-IN-LP Liquid Propane Indoor Tankless Water Heater

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

Product Details

UPC 671657108267
brand Takagi
Water Heater Type Tankless Water Heaters
Fuel Type Liquid Propane
BTU Input 190000
Install Location Indoor
Height 20.3 Inches
Product Reviews for Takagi T-K4-IN-LP Liquid Propane Indoor Tankless Water Heater
5.0 / 5

Great value and excellent product (About the Takagi T-K4-IN-LP)

Review by on Tuesday, October 7, 2014

I purchased this Tankless Water Heather and couldn't be more pleased. I am at high altitude and much to my surprise, the unit provides two showers worth of hot water at the same time. Amazing as I'm at 10,400 feet in the mountains.

5.0 / 5

Great (About the Takagi T-K4-IN-LP)

Review by on Friday, November 16, 2012

Works great, guess I will never run out of hot water again! Very efficient.

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