NAVIEN NFB-200H CONDENSING FIRE TUBE BOILERS, 13.3-199.9 MBTU, 95% AFUE CAN CONTROL 3 ZONES VALVES OR PUMPS, FOR TECHNICAL SUPPORT AND WARRANTY PARTS PLEASE CALL 800-519-8794

[ "Condensing Boiler", "Supply Connection 1-1/4 Inch Threaded", "Return Connection 1-1/4 Inch Threaded", "Gas Type Natural/Propane", "Gas Connection 3/4 Inch Threaded", "AFUE Rating 95 Percent", "Boiler Dimensions 17.3 Inch Width x 17.3 Inch Depth x 27.6 Inch Height", "Boiler Material Cold-Rolled Carbon Steel, Stainless Steel (Heat Exchanger)", "Ignition Type Electronic", "Venting Type Forced Draft Direct", "Vent Size 2 Inch or 3 Inch", "Relief Valve Details 30 PSI Water Pressure Relief Valve is Included as Standard", "Pressure Rating 12 to 80 PSI, -0.05 to -0.2 Inch WC (Natural), -0.1 to -0.45 Inch WC (Propane)", "Mounting Type Indoor Wall-Hung", "Power Supply 120 Volt AC 60 Hertz, 15 Amp", "Capacity 200000 BTU/Hour (Safety Relief Valve), 183000 BTU/Hour (Boiler Unit)" ]