... By moving fast hot air past the food, halogen oven could grills, roasts, broils, bakes, steam etc ... cook around 50% faster using a convection oven than a conventional oven.2. Save on electricity. You can save ... 75% more energy with a convection oven than with a conventional oven.3. Cooks food more evenly. Air ... 6. Saves space and is portable. A convection oven is small, compact and can easily sit on your ...