Install adequate insulation in your attic, walls, basement, crawl spaces and floors. Put weather stripping and caulk around windows and doors to seal cracks. Insulate and weather-strip the doors to your attic.
Wrap insulation around ductwork and water pipes that run through basements, garages or crawl spaces.
Place foam gaskets behind light switches and outlet covers to prevent air coming in from the wall space.
Close off unoccupied rooms and shut off air conditioning vents in those rooms.
Close fireplace damper tightly during summer months.
Close draperies, blinds or shades during the day on windows that receive direct sunlight to retain cooler air.
Clean air registers and intake vents regularly. Make sure they are not blocked by furniture, carpeting or draperies. Clean or replace air conditioner filters monthly. Inspect your cooling systems annually.
Set your ceiling fan motor so the blades push air down toward the floor for more efficient cooling.
Install a programmable thermostat to automatically adjust your home’s temperature when you are away or sleeping.
Use energy saving settings on all electric appliances.
Preheat the oven for the least amount of time possible. Cook several dishes in the oven at the same time.
Wash only full loads of clothes and clean the dryer’s lint screen after each use.
If your central air conditioner is more than 15 years old, consider replacing it with an ENERGY STAR qualified unit. When it is time to replace old appliances, consider ENERGY STAR models, which generally use significantly less energy than standard models.