NAVIEN NFB-175H CONDENSING BOILER 17.5 - 175 MBTU MODULATING 95%AFUE NAT/LP GAS WALL HUNG LESS PUMP (

Condensing Heating Boiler; Type Hot Water; Supply Connection 1-1/4 Inch Threaded; Return Connection 1-1/4 Inch Threaded; Gas Type Liquid Propane/Natural; Gas Connection 3/4 Inch Threaded; AGA Input Rating 17500 to 175000 BTU/Hour; DOE Heating Capacity 161 MBH; Net IBR Rating 140 MBH; AFUE Rating 95 Percent; Air Inlet Connection 2 Inch; Boiler Dimensions 17.3 Inch Width x 17.1 Inch Depth x 28.9 Inch Height; Boiler Material Stainless Steel (Heat Exchanger), Cold Rolled Carbon Steel (Casing); Ignition Type Electronic; Burner Type Fully Modulating Metal Fiber Premix; Venting Type Forced Draft Direct; Vent Size 2 Inch; Relief Valve Details 30 PSI ASME Relief Valve Supplied; Pressure Rating 12 to 80 PSI; Mounting Type Wall Hung Mount; Warranty 15 Year (Heat Exchanger), 5 Year (Parts), 1 Year (Labor); Options External System Supply and Return Sensor, Primary/Secondary NFB Manifold Kit, Plumb Easy Valve Set, Condensate Neutralizer, Common Vent Damper Kit, Zone Pump Controller, Universal Temperature Sensor; Inclusions/Features Backlit Front Panel, Low/High Voltage Terminal Strip, Flame Rod, APS, Ignition Operation Detector Water Temperature High Limit Switch, Exhaust Temperature High Limit Sensor, Water Pressure Sensor, Illuminated Front Panel with Advanced Hydronic and DHW Operation, Outdoor Reset Sensor; Applicable Standard ANSI Z21.13, CSA, ASME H, AHRI, SCAQMD; Electrical Rating 120 Volt AC 60 Hertz, 10 Amp; Material Cold Rolled Carbon Steel (Casing), Stainless Steel (Heat Exchanger); Schedule Rating 40 (PVC); Pressure Rating 3.5 to 10.5 Inch WC (Natural Gas), 8 to 13.5 Inch WC (Propane); Application Indoor Residential