Electric Infrared Heater, Overall Length 46 in, Overall Width 21 1/2 in, Overall Depth 11 in, Phase 1 or 3, Voltage 480V AC, Wattage Output 10,950W, Beam Pattern 60 Degrees , Element Type Quartz Lamp, Housing Color Silver, Housing Material Aluminum, Mounting Type Recessed, Surface, Suspended, Grille Depth 1/8 in, Grille Height 38 1/2 in, Grille Width 18 3/4 in, Grille Material Stainless Steel, Heating Capacity 37,372 BtuH, Heating Method Radiant, Housing Finish Nickel-Gray