Plant a deciduous shade tree near your home to control the amount of heat that reaches your house.
Repair and weatherstrip air leaks in the home; about 10-25% of conditioned air escapes via leaks.
Increase your attic insulation if the joists are showing. Recommended level: R-38 or 10-16 inches blown.
Install a programmable thermostat; set it higher when you are away.
When you’re home, set your thermostat to 78 degrees.
Maintain consistent temperatures.
Install ceiling fans to circulate cool air throughout the house.
Windows and Vents
Shade your windows with light-colored shades to reflect heat.
Close draperies and shades on south-facing windows to block sunlight and heat during the day.
Install awnings on windows that get excessive sun in the late afternoon.
Move furnishings away from floor or return air vents.
Hang laundry outside to dry. Use the dryer’s fluff cycle to soften any stiffness.
Use a microwave instead of a conventional oven.
Avoid using heat-producing appliances such as ovens or dryers during the hottest parts of the day.