Electric Infrared Heater, Overall Length 25 1/8 in, Overall Width 14 3/4 in, Overall Depth 9 1/4 in, Phase 1 or 3, Voltage 480V AC, Wattage Output 4300W, Beam Pattern 60 Degrees , Element Type Flat Panel Emitter, Housing Color Silver, Housing Material Aluminum, Mounting Type Recessed, Semi- Recessed, Surface, Suspended, Grille Depth 1 1/4 in, Grille Height 23 in, Grille Width 13 3/4 in, Grille Material Steel, Zinc Plated, Heating Capacity 14,672 BtuH, Heating Method Radiant