The commercial wall fan OAC heater provides a burst of heat in areas affected by cold drafts. Designed for residential, commercial and industrial use, the unit can be recessed or surface-mounted. Powered by a closed factory-lubrificated motor, the fan blows warm air downward to create air circulation. Cut down on cold drafts Bottom air outlet High-limit temperature control with automatic reset Closed, factory-lubricated motor Fan delay purges heater of residual heat