Like many of you, I learned how to use a stove from my mother, and she taught me to broil with the oven door open. But times change, and so do appliances. If your oven is less than ten years old, chances are you should be broiling with the door closed. Most ovens sold today are built as closed-door broilers, for reasons of safety and smoke control. We learned this the hard way in the test kitchen when one of our ovens shut down after we broiled with the door open, and we had to call in a technician to reset the electronic controls. To find out if your oven is a closed- or an open-door broiler, consult your manual or call the manufacturer. If your broiler is gas-powered, you should always broil with the door closed.