Customer Questions and Answers for Dryer Heater Air Duct Box by Whirlpool

This is the heater housing box that directs heated air from the heating element into the dryer drum. It forms an enclosed duct pathway to ensure proper airflow during the drying cycle. Replace this part if the dryer is not heating efficiently, takes too long to dry clothes, or the housing is cracked, warped, or damaged from excessive heat.