07/07/2017
Natural light can help reduce your lighting costs, but when no one is in a room, it's best to keep the curtains closed during the day. This is especially true for houses with windows facing east and west. Keeping direct sunlight from entering the house helps reduce the amount of work your air conditioner has to do. To maximize cooling, open the drapes, blinds or curtains in the evening to allow heat to escape through the windows.