The GT-540X3-PIH is well suited for residential applications. American has combined water heating and treatment in a product designed to revolutionize tankless water heating. Our new condensing gas tankless line features X3® Scale Prevention Technology to last three times longer than other tankless models without X3® Technology. Complies with Ultra-Low NOx regulations. The GT-540X3-PIH utilizes commercial-grade copper alloy for the heat exchanger tubing and are approved to work with an external recirculation pump and cross-over valve. Certified up to 10,100 ft. altitude.
- ENERGY STAR® qualified
- X3® Scale Prevention Technology
- 15-year limited Heat Exchanger Warranty, 5-year parts warranty, 1-year labor warranty for Residential applications
- Commercial-Grade Copper Heat Exchanger
- Approved to work with an external recirculation pump and cross-over valve
- Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)
- Condensing Indoor model
- Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes