The TK-110U-I supplies hot water to domestic hot water systems and can be used with water storage tanks, recirculation systems, and/or combined domestic & heating applications.
- 15 year limited heat exchanger, 5 yrs limited parts Residential use
- Field convertible from Natural Gas to Liquid Propane
- Includes built-in temperature controller and power cord as standard features
- Venting with Category III stainless steel
- Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
- Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)





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