Takagi TK4INLP

White 8.0 GPM Liquid Propane Indoor Tankless Water Heater from the Tankless Collection

Item # BCI1880930   |   Model # TK4INLP

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This product has additional required/recommended options. To configure, add to your cart.

  • Pipe Cover Recommended
  • Direct Vent Recommended

8.0 GPM Liquid Propane Indoor Tankless Water Heater

The all new T-K4 models have an impressive max GPM of 8.0GPM! Cost-efficient and environmentally friendly, the T-K4-IN can be installed indoor with an optional Direct Vent kit. This tankless water heater is a powerful unit with gas inputs up to 190,000 BTU per hour.


  • Capacity 2-3 Showers (Depending on climate)
  • Gas Fired Tankless Water Heater
  • Indoor Installation Only
  • Safety Features: Air-Fuel Ratio Sensor (AFR), Exhaust and Water Temperature Safety Control, and Overheat Cutoff Fuse
  • Internal Freeze Protection System
  • Manual reset switch


  • Min 11,000 BTU/h
  • Max 190,000 BTU/h
  • Energy Factor - 0.82
  • Hot/Cold/Gas Connection - 3/4" NPT
  • Dimensions - H 20.3" x W 13.8" x D 8.5"
  • Weight - 38 lbs
  • Clearance- Top: 12", Bottom: 12", Front: 24", Back: 1", Sides: 2 "


  • Horizontal or Vertical Insallation
  • Electric Ignition
  • Power Vent
  • Flue 4" O.D.-Category Stainless Steel
  • Intake 3" O.D.(ABS, PVC, Galvanized Steel, Corrugated Stainless Steel  or Category III/IV Stainless Steel)
  • 50' Max Length, 5 Elbow max (90 degree Elbow = 5' length)


  • 9007996005 - Backflow Prevention and F-F adapter
  • 9007667005 - Direct Conversion Kit
  • 9007671005 - Pipe Cover
  • 9007666005 - Temperature Remote Controller (Included)
  • 9008004005 - Sidewall Vent Terminator (Hood) and Wall Thimble (4"-7")
  • 9007674005 - Recess Box
  • 9007605005 - Isolation Valves and Pressure Relief Valve

Additional Takagi Links

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

  • Takagi TK4INLP

*Discontinued model or finish

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Manufacturer Resources

Installation Resource Center

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