Recessed Electric Wall-Mount Heater, Commercial/Industrial, 4000 Watts, 13,650 BtuH, Heater Voltage 208 V AC, Electric Heater Phase 1, Wall Opening Width 14-5/16 In., Color White, 19.2 Amps AC, Wall Opening Depth 3-7/8 In., Wall Opening Height 18-1/4 In., Mounting Type Recessed, 60 Hz, Air Temp. Rise 108 Degrees F, Grille Material Steel, Grille Width 15 5/16 in, Grille Depth 1 1/2 in, Grille Height 19 3/16 in, Housing Width 14 5/16 in, Housing Depth 3 7/8 in, Housing Height 18 1/4 in