Recessed Electric Wall-Mount Heater Commercial/Industrial 1500/750 Watts 5120 BtuH Heater Voltage 120 V AC Electric Heater Phase 1 Wall Opening Width 14-3/16 in Color White 12.5/8.3 Amps AC Wall Opening Depth 4 in Wall Opening Height 19-15/16 in Mounting Type Surface and Recessed 60 Hz Air Temp Rise 27 Degrees F Grille Material 18 ga Steel Grille Width 15 3/8 in Grille Depth 1 in Grille Height 20 1/8 in Housing Width 13 7/8 in Housing Depth 3 3/4 in