NAVIEN NFB-399C CONDENSING BOILER

Condensing Heating Boiler; Type Hot Water; Supply Connection 1-1/2 Inch Threaded; Return Connection 1-1/2 Inch Threaded; Gas Type Liquid Propane/Natural; Gas Connection 3/4 Inch Threaded; AGA Input Rating 26000 to 399000 BTU/Hour; DOE Heating Capacity 389 MBH; Net IBR Rating 338 MBH; Air Inlet Connection 3 Inch; Boiler Dimensions 25.1 Inch Width x 22.3 Inch Depth x 32.8 Inch Height; Boiler Material Stainless Steel (Heat Exchanger), Cold Rolled Carbon Steel (Casing); Water Content 9.6 Gallon; Ignition Type Electronic; Burner Type Fully Modulating Metal Fiber Premix; Venting Type Forced Draft Direct; Vent Size 3 Inch; Relief Valve Details 50 PSI ASME Relief Valve Supplied; ASME Code Yes; Pressure Rating 160 PSI; Mounting Type Wall Hung Mount; Warranty 10 Year (Heat Exchanger), 3 Year (Parts), 1 Year (Labor); Options Universal Temperature Sensor with Clip, 75/150 PSI Pressure Relief Valve, BMS Gateway Module, NaviLink Wi-Fi Control, Condensate Neutralizer, Zone Pump Controller, 3 Inch Common Vent Damper Kit; Inclusions/Features LCD Color Front Panel, Low/High Voltage Terminal Strip, Outdoor Reset Sensor, Flame Rod, APS, LWCO Water Temperature High Limit Switch, Exhaust Temperature High Limit Sensor, Water Pressure Sensor; Applicable Standard ANSI Z21.13, CSA, ASME H, AHRI, SCAQMD; Electrical Rating 120 Volt AC 60 Hertz, 12 Amp; Schedule Rating 40 (PVC); Pressure Rating 3.5 to 10.5 Inch WC (Natural Gas), 8 to 13.5 Inch WC (Propane); Thermal Efficiency 97.5 Percent; Application Commercial