Recessed Electric Wall-Mount Heater, Light Commercial/Residential Shallow Wall, 750/1000 Watts, 2560/3413 BtuH, Heater Voltage 208/240 V AC, Electric Heater Phase 1, Wall Opening Width 9-3/16 In., Color Stainless Steel, 3.6/4.2 Amps AC, Wall Opening Depth 2-1/2 In., Wall Opening Height 12-5/8 In., Mounting Type Surface and Recessed, 60 Hz, Air Temp. Rise 81 Degrees F, Grille Material Steel, Grille Width 10 1/2 in, Grille Depth 1 1/4 in, Grille Height 14 1/2 in, Housing Width 9 1/4 in WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)