Under Cabinet Heater Rough-In Height 3 1/2 in Rough-In Width 20 1/8 in Rough-In Depth 10 1/2 in Wattage Output 1350 W 1800 W 450 W 900 W Housing Color Black Housing Finish Powder Coated Heating Method Fan Forced Heating Capacity 6147 BTU Thermostat Included No Voltage 120/240V AC 1 Phase Air Flow 39 cfm Amperage 11.3 A 15 A 3.8 A 7.5 A Grille Height 3 3/4 in Grille Width 21 1/4 in Grille Color Black/White Grille Finish Powder Coated Grille Material 22 ga Steel