Indoor Takagi T-K4-IN-LP Tankless Water Heater, Propane, 190K BTU

Indoor Takagi T-K4-IN-LP Tankless Water Heater, Propane, 190K BTU

Indoor Takagi T-K4-IN-LP Tankless Water Heater, Propane, 190K BTU QR Code
Product Code: T-K4-IN-LP

Availability: In Stock

Weight:44.00 lb

Dimensions (L x W x H ): 17.00 x 14.00 x 28.00

Usually ships: 1 business days
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Takagi T-K4-IN-LP Tankless Water Heater has gas inputs up to 190,000 BTU per hour and an energy factor of 0.82. The all new Takagi T-K4-IN-LP has an impresive max GPM of 8.0GPM.


Includes TK-RE02 Remote Temperature Controller.


This Tankless Water Heater adds 1 more shower over the Takagi T-KJr2 at minimal increase in cost and is perfect for domestic hot water as well as hydronic/radiant heating applications in mid size residential homes or apartments with 2-3 bathrooms.


Takagi Tankless Water Heater T-K4-IN has four preset temperatures: 113F, 122F, 131F, 140F.  

To convert the water heater from a standard vent system to a direct‐vent (or sealed combustion) system, use a TK-TV10 Direct‐Vent Conversion Kit. By default (indirect vent), the unit will use the intake air from the room where it is installed.



Fully modulating, gas fired tankless water heater;

Indoor installation only(Direct-vent convertible);

Safety Features:

  • Air-Fuel Ratio (AFR) sensor;
  • Exhaust & Water Temperature Safety Control;
  • Overheat Cutoff Fuse

Internal Freeze-Protection System;

Manual reset high limit switch;

Horizontal or Vertical Installation;



Fuel Type: Propane;

Max BTU Rating: 190,000 BTU/h;

Min BTU Rating: 11,000 BTU/h;

Max. Flow Rate: 8 GPM (Gallons Per Minute);

Water Pressure: 15 ‐ 150 psi (40 psi or above is recommended for maximum flow);

Energy Factor (Propane): 0.82;

Hot/Cold Water Connections: 3/4" NPT;

Gas Connection: 3/4" NPT;

Weight: 34.6 lbs;

Dimensions (inches): 20.3" high x 13.8" wide x 8.5" deep;

Electric Consumption: 120 VAC ; Standby: 0.05 A, Operation: 0.73 A, Freeze-Protection: 0.93 A;

Ignition: Electric Ignition;

Propane Pressure Inlet: 8.0" W.C. min.; 14.0" W.C. max;

Manifold Presure (Propane): 3.7" W.C.;

Temperature Settings (dipswitch settings without remote controller): 113F, 122F, 131F and 140F;

Temperature Range (with TK-RE02 Remote Control): 99 - 167F (122F Default factory Setting);

Venting Intake: 3" O.D. (ABS, PVC, Galvanized Steel, Corrugated Stainless Steel or Category III/IV Stainless Steel);

Flue/Exhaust: 4" O.D. (Category III Stainless Steel);

Vent: 50' Max Length, 5 elbows max;

Product Specs
Application:2-3 Showers
Depth (Inches):8.5"
Energy Factor:0.82
Energy Star Rated:Yes
Fuel Type:Propane
Gas Connection:3/4"
Gas Input:11000-190000 BTU/h
Inlet Gas Pressure:8.0"-14.0"W.C.
Installation Type:Indoor Only
Max Flow (GPM):8
Product Type:Tankless Heater
PSI Range:15-150 psi
Temperature Range (F):99°-167°F
Vent Size:4"
Vent Type:Direct Vent Convertible
Venting Requirement:Category III Stainless Steel
Water Connection:3/4"
Weight (lbs):38 lbs
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