Ashley Exhaust Blower Assembly by Fasco. Includes the housing gasket. The exhaust blower is responsible for drawing smoke out of the unit and pulling combustion air into the stove. It is important that the blower functions properly. If the blower is not running as it should, smoke/flue gas may enter the room. You may also notice a lazy flame and a poor burn as a result of inadequate combustion air being delivered to the fire.