Fan forced ceiling heaters allow you to choose wattage during installation; shipped wired to highest wattage. Ceiling heaters feature a fan purge circuit that requires 4 wire supply when remote single pole wall thermostat is used (not included). Fan forced heaters are made with a durable 18 gauge steel front and powder coat finish. Manual reset thermal limit and steel block fin element on these electric ceiling heaters provide safety and efficiency in any environment. Propeller style fan blade is powered by a 1060 RPM motor offering 100 CFM. Include drywall depth embossments on the back can. Measures 12-1/8"L x 9-1/4"W x 3-5/8"D rough in. Grill measures 13"L x 9-13/16"W. UL approved. 1 Year Limited Warranty.