The lower temperature on your water heater and the insulation will mean that less energy is required to reheat. Save heat-producing activities such as clothes washing and drying for cooler evening hours and use cooler wash water. Remember, you have to cool the hot air that is generated by each of these appliances. Clean your air conditioner filter regularly, and when possible, run a fan without the air conditioner. A whole-house fan, usually installed in a central hallway or attic, pulls cool outdoor air inside and exhausts warm air through the attic.
Ceiling fans work best in rooms with high ceilings.
Window fans are most effective when mounted in an open area, such as a living room or living-dining room combination. Cook outdoors on a grill to keep from heating up your kitchen. Turn off lights and electrical devices when not in use. Buy energy efficient appliances to save energy year round. Plan your landscaping wisely, including the use of trees to provide shading.