Infrared Quartz Electric Heater, Overall Height Not Applicable, Overall Length 46 in, Overall Width 21 1/2 in, Overall Depth 11 in, Phase 1, 3, Voltage 480V AC, Wattage Output 10950 W, Beam Pattern 90 Degrees , Element Type Quartz Lamp, Housing Color Silver, Housing Material Stainless Steel, Mounting Type Chain Permanent, Recessed, Surface, Suspended, Wall, Grille Depth Not Applicable, Heating Capacity 37,372 BtuH, Heating Method Radiant, Housing Finish Stainless Steel