Qmark CDF ceiling-mounted fan-forced heaters are designed for commercial and industrial areas requiring electric fan-forced heat. This product does not include the mounting enclosure. The CDFSE surface enclosures are designed to mount flat on the ceiling and extend only six inches into the room. Type CDFRE enclosures have no protrusions outside the recess box, allowing the heater to recess only seven inches into ceiling space. Mounts into permanent ceiling with trim ring. A thermal cutout shuts off the heater in the event of overheating and reactivates the heater when the temperature returns to normal. Optional thermostat mounts inside unit to control room temperature. When the thermostat calls for heat, the heating elements and fan energize. When the thermostat is satisfied, the elements shut off, but the fan continues to operate until all of the heated air is discharged. This feature avoids exposing the heater to residual heat, thus achieving a high comfort level and longer component life. Comes in a navajo white finish. Mounting sleeve required for installation.