Takagi TK-310U-I 140,000 BTU Indoor Tankless Hot Water Heater

The compact Takagi TK-310U-I is a fully modulating, gas fired, non-condensing tankless water heater perfect for residential applications. The TK-310U-I endless hot on-demand Takagi tankless water heater can produce enough hot water for up to three bathrooms in warmer climates and it also complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm). These inovative models are field convertible from Natural Gas to Propane and come with the kit already in the box to do so!

Number of showers this unit can handle, depending on ground water temperature.

Warmer Climates 


Cooler Climates 

• 15-year limited heat exchanger, 5 yrs limited parts Residential use
• Field convertible from Natural Gas to Liquid Propane
• Venting with Category III stainless steel
• Includes a remote control as a standard feature
• Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
• Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)