Hot water heating accounts for about 90% of your washer’s energy use, so wash laundry in cold water whenever possible. Wash full loads or, if you must wash a partial load, adjust the water level. Clean your dryer’s lint trap before every load, and avoid over-drying clothes. Better yet, line-dry your laundry.
Depending on local water quality, many homeowners can effectively wash all their clothes in cold water. Fabrics generally last longer if dried on a clothesline or rack, too.
