How To Beat The Heat

The Green Guide has posted a useful piece on tactics for keeping cool this summer - something about which we all could use a little reminder...

The most efficient and environmentally friendly option is to not use AC. However, US Department of Energy regulations require manufacturers to increase the energy efficiency of air conditioners by 30% beginning 2006. Over the next several years we are sure to see a number of major innovations in home cooling technology.

No AC
• Fans use 90% less electricity than AC.
• Shades help keep heat out of the house: keep them closed during the day and open at night.
• A ventilated attic lowers the temperature in the house.
• Open windows allow for cross ventilation.
• Trees on the west side of the house can provide shade, cooling the structure.

Room AC
• Cooling units are more efficient when located in a shady area of the house.
• Cool only the space that needs cooling.
• Keep doors and windows closed.
• Close all duct vents.

Central AC
Central AC is generally more efficient than room AC, though the cost of installation is substantially more
• Reduce the cooling load on the AC while it is running:
•Keep the shades drawn on the east and west sides of the house.
•Don't run a dehumidifier.
•Don't run the dishwasher, clothes dryer or other heat producing appliances.
•Keep the cooled space sealed off from un-cooled space.
•Run bath and kitchen fans sparingly.
• Set thermostat at 78 degrees Fahrenheit or higher. According to the DOE, "Each degree setting below 78°F will increase your energy consumption by approximately 8%."
• Keep the indoor and outdoor coils clean.
• Check the refrigerant charge.

For more on this topic, including the most energy efficient air conditioners on the market right now, please check out the full article!