How to Increase the Efficiency of a Central Air Conditioner

A central air conditioning unit can make a difference between being cool and comfortable and hot and uncomfortable in the warm summer months. Keeping an air conditioner functioning properly is key to its long life. Here's how to increase the efficiency of a central air conditioner.

• Replace or clean the filters on the central air conditioning unit on a regular basis, such as monthly during the hot months when it is used the most.


• Hire an air conditioning professional to inspect and clean the filters of the air conditioning unit on an annual basis to keep it running at its peak performance.


• Consider installing ceiling fans in the rooms you use the most during the hot summer months to keep the ambient air temperature to a comfortable level without stressing your central air conditioner.


• Turn off the air conditioning unit and open windows when the outdoor temperatures are more comfortable to reduce wear and use of the central air conditioning unit.


• Use a programmable thermostat and set the temperature to rise when you will not be at home, such as during work hours, as well as while sleeping at night.


• Close all windows and outside doors when the air conditioner is running.


• Seal and insulate the house properly to keep the cool air inside during the summertime and reduce drafts.


• Walk around the house and close any registers or vents in rooms that are not occupied, and shut the door so that the room will not be cooled by the air conditioner.