Heating and Cooling

Set your thermostats at 78°F in the summer and 68°F in the winter and leave them there. You can immediately realize a 3% to 5% decrease in energy use for every degree you adjust the thermostat setting above or below your normal setting.
Make sure furniture, curtains and rugs don’t block the flow of air from vents and air registers.
Maintain heating and cooling unit efficiency by changing your filters monthly during the heating and cooling season. If you have pleated filters, change them at least every three months.
Clean dust from supply and return air grilles and heating outlets.
Make sure the caulk and weather-stripping around your windows and doors is in good shape. If the caulk is cracked or the weather-stripping is flat or peeling, replace the old material.
Seal around wiring and plumbing penetrations. Use caulk for small holes and expanding foam for larger areas. This will keep unconditioned air from entering the house.
Make sure your ductwork is properly sealed. Cracks in joints and at plenums can cause your heating and cooling bills to increase by as much as 30% and can allow outside air to enter your home.
Install programmable thermostats to automatically reduce energy usage when you are normally away from home. Programmable thermostats, when used properly, will help you reduce your heating and cooling energy costs.
Have your heating and cooling system professionally serviced annually to keep them running at top efficiency.

In the winter:

Open curtains and shades to let the sun warm your home naturally.
If you have a fireplace, make sure the damper is closed when the fireplace is not in use. This will keep cold air from coming down the chimney and into your home. It also will reduce warm air loss from your home.
Dress warmly, even indoors. This will allow you to set your thermostat a few degrees lower and still stay comfortable.

Keep curtains and shades closed during the summer, especially on the east and west sides of your home.
Avoid using appliances that give off heat during the hottest times of the day as they will make your cooling system work harder. Do your cooking, washing and clothes drying in the morning or in the late evening, when the demand on your cooling system is less.
Use ceiling fans to take some of the burden off your air conditioner. Ceiling fans can make air feel 6° cooler and allow you to adjust your thermostat to an energy-saving temperature.
If your cooling system runs continuously, but doesn’t seem to be cooling adequately, change your filter. If that doesn’t work, have a dealer check to see if refrigerant is low or if the coils are dirty.
Keep plants and brush at least three feet away from outside units so they can operate more efficiently.