Vent Type Direct Vent Fuel Type Natural Gas Heating Method Gravity Convection Heating Capacity Input 14 000 BtuH Heating Capacity Output 9 800 BtuH Heating Area 350 sq ft Ignition Type Matchless Piezo Ignition Power Source Manual Overall Height 26 1/4 in Overall Width 18 in Overall Depth 7 1/8 in Mounting Location Wall Mounting Type Surface Thermostat Included No Venting Vented Wall Type Single For Use Indoors/Outdoors Indoor Only Heater Voltage 450 mV Housing Color White