Space-saving， state of the art tankless design
ENERGY STAR and AHRI certified with UEF rating of 0.96
Top water connections for easy transition from tank to tankless
Integrated flush ports
Opti flow combustion management system offers automatic combustion adjustment， altitude adjustment， gas type adjusting， and vent configuration
Auto-tuning and integrated freeze protection for optimal performance
Maximum flow rate of 11.2 GPM with ability to control external pumps
Recirculation pump with dedicated return line
Industry leading 22:1 turn down ratio
Ultra-low no x certified with 60 ft. venting with 2 in. and 3 in. venting options
Stainless steel condensing heat exchanger
LP conversion kit included
Wi-Fi accessory and Greentherm App increases functionality (sold separately)
Engineered to operate in altitudes up to 8，000 ft. - great for Denver， CO
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