there is a add on heater kit available for certain models. you need to remove the control panel and check the wiring. to remove panel, look at the bottom of the control in the recess area. there will be three holes in bottom. take something small enough to fit the holes and push up on one outside hole while carefully pulling control toward you. repeat on the other outside hole and control panel will come off. there will either be a five wire connector or an eight wire connector at the board. if it is five wire you can order g.e. part number wd24x10018 heater. comes with instructions. if eight wire, the kit cannot be used and the door needs to be replaced