Wash laundry in cold water; 90 percent of the energy used for your clothes washer goes toward heating the water.
Anytime you use hot water you increase your energy costs. According to the Northeast Sustainable Energy Association, 90 percent of the energy involved in washing clothes by machine goes to heating the water, not to running the machine. If you choose cold water for your washing, you will save about $60 per year (Consumer Reports).
IN CASE YOU ARE WONDERING: Today’s detergents are designed to get clothes just as clean in cold water as in warm or hot, so except for extremely stained items, you don’t need hot water to ensure clean clothing.