Vent Type Direct Vent Fuel Type Propane Heating Method Fan Forced Convection Heating Capacity Input 17 700 BtuH Heating Capacity Output 13 500 BtuH Heating Area 2 000 sq ft Ignition Type Matchless Piezo Ignition Power Source Manual Air Flow 129 cfm Overall Height 28 1/8 in Overall Width 21 3/4 in Overall Depth 8 1/4 in Mounting Location Wall Mounting Type Surface Venting Vented Wall Type Single For Use Indoors/Outdoors Indoor Only Heater Voltage 120 V AC Housing Color White