Home / Appliance / Laundry / Dryer Heater Box 279900 Dryer Heater Box 279900$150.19 Price may not be up-to-date. In Stock View Product Part Number: 279900 Brand: WHIRLPOOL CORP Seller: Sears PartsDirect Categories: Appliance, Laundry 60-day return policy Description This heater box (part number 279900) is for dryers. Heater box 279900 carries heated air from the burner to the drum. Disconnect the power and shut off the gas supply before installing this part. Wear work gloves to protect your hands.