Check the filter at least once a month during the warm season and clean it as needed.
Use the fan setting at night when the air outside is cool, or open a window and leave the air conditioner off. Keep windows closed whenever the air conditioner is on.
Use the air conditioner's timer and set it to turn on no more than 30 minutes before you expect to return home.
The lower you set your temperature, the more it will cost. For example, a 75° setting will cost about 18 percent more than a 78° setting.
Plant hollyhocks, clematis vines or other shade-producing plants in front of east and west facing windows to reduce the need for air conditioning.
