10. Convection Microwave Speed Ovens
Combining the rapid heating capability of microwaves with the browning and crisping power of forced-air convection, speed ovens provide a highly energy-efficient alternative to firing up a full-sized wall oven. Preparing small to medium meals in a full-sized electric oven wastes significant energy simply preheating a large insulated cavity. Speed ovens reach target cooking temperatures almost instantaneously while using up to 70 percent less electricity.