Electric Ceiling Panel Heater, Overall Length 23 3/4 in, Overall Width 23 3/4 in, Overall Depth 7 in, Overall Height 5 3/4 in, 1 Phase, Voltage 277V AC, Wattage Output 2000W/3000W/4000W, Housing Color Gray, Heating Method Fan Forced, Heating Capacity 6,800/10,200/13,700 BtuH, Mounting Type Recessed, Thermostat Included No, Air Flow 300 cfm, Air Temp. Rise 51 Degrees F, Amperage 14.4A/10.8A/7.2A, Frequency 60 Hz, Control Type Thermostat, Heater Mounting Position Vertical Burn