Powder coated 20 ga. steel front with extruded aluminum frame, Manual reset thermal limit, Finned tubular steel element, Propeller style fan blade - 2200 RPM / 70 CFM, Weight 9 lbs., Rough in dimensions - 14.5 in. wide - 7.125 in. high - 3.5 in. deep, Grill dimensions - 16.875 in. wide - 8 in. high, Unit not approved for ceiling mount applications, Unit can be positioned to allow left, right or top discharge