Check your oven door seal for cracks or tears. Even a small or gap allows considerable heat to escape. It also pays to keep the seal clean, for better heat retention. Here are a few of his energy-saving tips for stove and range. Use the right size pan for the job.
Flat bottoms are best, particularly for electric and smooth cooktops.
Thaw frozen foods in the refrigerator first to reduce cooking time. Lining the oven with foil can reduce indoor air pollution by keeping the interior clean. Before doing this, however, check the manual so as not to interfere with the oven's operation. Clean self-cleaning ovens immediately after use to take advantage of residual heat. First clean off what you can by hand to hasten the process.