NAVIEN NHB-55H CONDENSING BOILER, 8K-55K BTU/H, 95% AFUE, FOR TECHNICAL SUPPORT AND WARRANTY PARTS PLEASE CALL 800-519-8794

[ "Residential Condensing Gas Boiler", "Type High Efficiency, Hot Water", "Supply Connection 1 Inch Threaded", "Return Connection 1 Inch Threaded", "Gas Type Natural/Liquid Propane", "Gas Connection 3/4 Inch Male Threaded", "AGA Input Rating 8000 to 55000 BTU/Hour", "DOE Heating Capacity 51 MBH", "Net IBR Rating 44 MBH", "AFUE Rating 95 Percent", "Air Inlet Connection 2 Inch", "Boiler Dimensions 17.3 Inch Width x 12.8 Inch Depth x 23.8 Inch Height", "Boiler Material Stainless Steel (Heat Exchanger), Cold Rolled Carbon Steel (Casing)", "Ignition Type Electronic", "Burner Type Metal Fiber Premix", "Venting Type Forced Draft Direct", "Vent Size 2 Inch", "Relief Valve Details 30 PSI Relief Valve Supplied", "GPH Recovery 4.6 GPM", "Pressure Rating 12 to 30 PSI", "Mounting Type Wall Hung Mount", "Warranty 10 Year (Residential Heat Exchanger), 15 Year (Commercial Heat Exchanger), 5 Year (Parts), 1 Year (Labor)", "Options Concentric Vent Kit, System Sensor", "Inclusions/Features Flame Rod, Aps, Gas Valve Operation Detector, Ignition Operation Detector, Water Temp High Limit Switch, Exhaust Temp High Limit Sensor, Vent Installation Detector (VID)", "Applicable Standard ANSI Z21.13, CSA, ASME H, AHRI, SCAQMD", "Voltage Rating 120 Volt AC 60 Hertz", "Current Rating 10 Amp", "Schedule Rating 40 (PVC)", "Pressure Rating 3.5 to 10.5 Inch WC (Natural Gas), 8 to 13.5 Inch WC (Liquid Propane)", "Application Indoor Residential/Commercial" ]