Make sure your refrigerator door seals are air tight. Test them by closing the door over a dollar bill. If you can pull the bill out easilly, the latch may need to be adjusted or the seal may need to be replaced.
Position your refrigerator away from sunny windows, hot water heaters, warm air from heating ducts, radiators, stoves and other heat sources. The heat makes cooling harder for your refrigerator.
If your refrigerator is more than 10 years old, consider replacing it. New refrigerators today use half the energy of 10-year-old refrigerators and Energy Star labeled refrigerators are even more efficient. Some use 15% less energy than required by federal guidelines.
Replacing the seals on your refrigerator is not hard and can make a big improvement in the aplliances efficiency (and appearance). Replacement seals are often available at many home goods store and through the maker of the unit. One tip for using these replacement seals is to warm them before installing, this removes the crimps that often occur from their packaging. A few minutes in the clothes dryer should do the trick.
When the weather gets cold, take advantage of the situation. Free up space in your refrigerator by storing your canned goods and sodas in an unheated garage or outside a backdoor.
If a freezer or refrigerator is prone to condinsation on the outside, protect the outer surface by rubbing it with silicone polish applied with a soft cloth.
After defrosting a freezer, wipe the interior with glycerin. Next time you defrost it, the ice will be easier to remove, eliminating he need for scraping.
A full refrigerator uses less energy to operate than an empty one.
Cover a scratch on a refrigerator or freezer door with enamel paint. First, clean with detergent and wipe dry with a clean cloth. Test the color on an unseen area, and retouch with a fine brush.
Refrigerators with the freezer on top are more efficient than those with freezers on the side.