Set your AC to 78°F to save energy

Save energy and money by setting your air conditioner higher, particularly when you are away from home.

Cooling can account for a large portion of your home's summer energy use. To save energy and money, Energy Star recommends setting your thermostat to 78°F when you are home, and raising the temperature at least 7°F when you're away and 4°F when you are sleeping. 

See more information and tips at HowStuffWorks.

Photo by Susan O'Donnell

---