The Qmark SED is a shallow electric fan forced wall heater with a 2 ˝” back box. It’s ideally suited for recessed shallow wall mount applications, such as manufactured homes. This heater comes with a built in thermostat for a quick installation. It’s designed to recess in the wall, with an optional surface mounting frame. The Qmark SED is ideal for bathrooms, dens, converted attics, breezeways.