Abstract: A heating box for an electric heating element is disposed in a clothes dryer. A substantially rectangular enclosure is opened at a first end and closed at a second end and internally supports one or more heating elements. A surface of the enclosure includes a plurality of holes which allow the heating element along its length to remain in contact with ambient air. The first end is connected to the heating duct of the dryer, and air enters through the plurality of holes and is heated. The air is drawn through the open end of the heating box due to a negative pressure applied to the dryer chamber into the dryer. In accordance with a preferred embodiment, the size of the holes changes along the length of the enclosure.