Product Type Suspended Infrared Tube Heater, Fuel Type Natural Gas, Heating Capacity Input 50, 000 BtuH, Radiant Tube Length 20 ft, Floor Coverage @ Minimum Mounting Height 20 ft x 20 ft, Heating Method Radiant, Overall Height 8 1/2 in, Overall Width 18 1/8 in, Overall Depth 21 5/8 ft, Element Type Radiant Pipe, Thermostat Included No, Amperage 4.8 A, Heater Voltage 120 V AC, Heat Output 50, 000 BtuH, Ignition Type Hot-Surface, Fuel Consumption 0.48 thm/hr, Frequency 60 Hz