Product Type Free-Standing Vented Gas Floor Heater, Fuel Type Propane, Cabinet Style Solid Face, Heating Capacity Input 20,000 BtuH, Heating Capacity Output 15,500 BtuH, Thermostat Included No, Vent Diameter 3 in, Overall Height 21 1/2 in, Overall Width 23 in, Overall Depth 11 in, Safety Features Vent Limit Switch, Connection Size 1/2 in, Connection Type NPT, Floor to Center of Vent 17 in, Heating Area 500 sq ft, Heating Method Gravity Convection, Housing Color Black