Navien NR-240A Condensing Tankless Water Heater with Pump and Buffer Tank, PropaneProduct Review

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98 percent thermal efficiency. 0.95 energy factor

17000 - 199000 BTU/hr

Flow rates - At 35 Degree Fahrenheit Rise : 11 GPM, At 45 Degree Fahrenheit Rise : 8.6 GPM, At 77 Degree Fahrenheit Rise : 5.1 GPM

Easy installation and PVC venting

Includes NR-10DU remote control