Forget AC: Cool your home naturally

Categories: How To
Published on: June 14, 2019

Mother Earth News / Carol Venolia, Kelly Lerner / August/September 2007

Space cooling and heating can account for up to 45 percent of your total home energy use every year, but there are numerous strategies you can employ to reduce cooling costs. For instance, a ceiling fan used in conjunction with air conditioning lets you raise the thermostat by as much as 4 degrees while maintaining the same comfort level in a room. The U.S. Department of Energy estimates that each degree below 78 degrees on your thermostat will increase your air conditioning bill by 8 percent. You also can use natural ventilation to capture and create breezes, or to help you take advantage of nighttime drops in temperature.

Other money-saving ideas include minimizing heat gain, weather sealing, insulating, window shading and glazing, roof lightening and landscaping (see “Best Bets for Passive Cooling”). Because natural ventilation is one of the most cost-effective ways to cool your home, we’ll examine it here in greater detail.

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