Applies to Renters  
check Pots and pans are important - pans with flared sides or that are smaller than your cooking elements let heat escape. If they're too big or have warped bottoms, food won't cook evenly. For most foods, a medium-weight aluminum pan cooks faster and more efficiently. Save your heavy pans for foods that require slow, steady cooking.
check Use Glass or Ceramic pans in oven - They heat faster than metal pans - that's why brownie recipes call for 350 degree, but 325 for a glass pan.
check Cover up - Use pan covers. Trapped steam cooks food faster. Thaw food completely before cooking, too.
check No need to preheat - unless you're baking things like breads and cakes, you don't need to preheat the oven - casseroles and broiled foods don't need it.
check Plan all oven meals - A meal like meat loaf, baked tomatoes, scalloped potatoes and baked apples can cook at the same time and temperature.
check Limit boiling water - water doesn't get any hotter with prolonged boiling. Therefore, when you need boiling water, just boil as much as you need and turn off your range once the water has started to boil.
check Don’t peek - every time you open the oven door the temperature can drop 25 degrees. Use a timer and be patient.
check Use the leftover - your oven has them too. Ovens retain heat up to 15 minutes, and electric cooking elements retain heat for 3-5 minutes. Use that leftover heat for warming up foods
check Keep it clean - a range free of grease and baked on residue will work better and cost you less to operate. And keep the reflector drip pans under the surface cooking elements clean too.
check Use a microwave oven - A microwave oven uses about the same amount of energy per hour as a conventional electric oven, but cooks most foods in less than half the time. That can mean savings on the cooking portion of your energy bill.
check Keep it clean - keeping the inside of your microwave oven clean will help it cook more efficiently.
check Use small appliances - use an electric skillet, crock-pot, broiler oven or toaster oven for cooking and baking small quantities. They may use as little as half the energy and won't heat up the kitchen.
check Check the flame - if you cook with gas, check the flame on your range since it should be blue to operate most efficiently. If it is yellow, a qualified dealer or repair technician may be needed to make the necessary adjustments.
check Keep racks clear - Foil on oven shelves blocks heat and costs money.
check REMEMBER - always take care when cooking, it is the number one cause of home fires in the United States.