T-K4U

The compact T-K4U is a fully modulating, gas fired, tankless water heater perfect for residential applications. With gas inputs of 190,000 BTU, the T-K4U can produce enough hot water for up to three bathrooms in warmer climates.






Downloads:

Download T-K4U Manual

Download Specification Sheet

 


Available for indoor and outdoor installation, the T-K4U supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, recirculation systems, hydronic heating systems, radiant floor systems, and/or domestic & heating applications.


  • Maximum flow rate of 8.0 GPM at 35°F temperature rise (4.4 GPM at 70°F rise)

  • Energy Factor of 0.82 for NG and LPG

  • ENERGY STAR® qualified

  • Indoor model includes both a remote control and power cord as standard features

  • Outdoor model includes remote control as standard feature

  • Venting with Category III stainless steel

  • Safety features include freeze, overheat, and surge protection

  • Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)

Natural Gas Input Min. 15,000Btu   Max. 190,000Btu 
Gas Connection 3/4" NPT   
Water Connection 3/4" NPT   
Natural Gas Pressure Inlet Min. 5.0" W.C.  Max. 10.5" W.C. 
Weight 37 lbs.   
Dimensions 20-1/2" x 13-4/5" x 8-1/2"   
Ignition Electronic Ignition   
Electrical Supply AC 120V (60 Hz)   
Water Pressure Min. 15 psi  Max. 150psi 
Natural Manifold Pressure 2.0 - 2.5" W.C.   
TM-RE40

The TM-RE40 Temperature Remote Controller allows the output temperature to be adjusted beyond the factory settings, and works as a diagnostic tool for error codes.

9008004005
Sidewall Vent Terminator (Hood) and Wall Thimble (4”-7”)
Sidewall Vent Terminator (Hood) and Wall Thimble (4”-7”)
9007996005
Backflow Preventer & F-F Adaptor
Backflow Preventer & F-F Adaptor
9007674005
Recess Box
The 9007674005 completely houses the tankless hot water unit and allows it to be completely recessed into a wall for a smooth, almost seamless look. It is just over 14 inches wide so it easily fits in-between the studs.
9007671005
Pipe Cover
The 9007671005 Pipe cover is designed to be attached directly to the bottom side of the unit to provide a cover for the pipe connection entry.
9007667005
Direct Vent Conversion Kit
Direct Vent Conversion Kit
9007605005
Isolation Valves & Pressure Relief Valve
Isolation valves are used to isolate a unit for service. The Pressure Relief Valve is to help protect the unit and release if the pressure in the tankless water heater or hot water system exceeds 150 psi.
9007604005
Lead free Isolation Valves & Pressure Relief Valve
Lead free Isolation valves are used to isolate a unit for service. The Pressure Relief Valve is to help protect the unit and release if the pressure in the tankless water heater or hot water system exceeds 150 psi. (1953 Compliant)