How to keep your central air conditioning system running efficiently

Our customers and subscribers have asked for suggestions on how to reduce the energy costs associated with home cooling during the summer months. To help, we’ve compiled this list for easy reference, and to easily share with friends and family, too!

Looking for ways to beat the heat? July has been a scorcher in Burlington, and neighboring Massachusetts areas it looks like August will bring more of the same.

Try these tips to keep your air conditioning system running efficiently:

1. Replace filters regularly! This is one of the easiest things to do yet one of the most commonly overlooked. Filters should be replaced monthly, so make it a habit by keeping a supply of filters on hand.
2. Set your thermostat and leave it. Pick a temperature that you are comfortable with (perhaps 75°) and keep it at a constant setting. Turning the thermostat down doesn’t affect the temperature of the air blowing out of your vents. It makes the system run longer, not colder.
3. Keep curtains, drapes and blinds closed, especially on the west-facing side of your house.
4. Shade your air conditioner. Your unit works harder if it is in an area that receives full sun.
5. Don’t block the AC unit. Keep air flow free from obstructions.
6. Keep household appliances that produce heat far away from your thermostat. You don’t want an adjacent TV or water heater to contribute to a false thermostat temperature.
7. Caulk around window frames to seal any leaks and check weather stripping.
8. Invest in a few good ceiling fans or some smaller portable fans. Fans provide evaporative cooling as you sweat. If you buy a ceiling fan with lights, opt for those with Compact Fluorescent Lamps (pin-type) CFL’s, which last up to 15 times as long as incandescent bulbs.
9. If your home has a fireplace, don’t send cool air up the chimney – close the damper and shut glass doors.
10. Schedule regular service on your air conditioning system. Your system’s refrigerant charge needs to be checked annually, and the AC unit needs to be cleaned professionally. A/C Maintenance ensures your system is running at peak efficiency.

If you are concerned about obtaining optimal efficiency from your Air Conditioning system, be sure to schedule an A/C system maintenance check with your HVAC contractor. A professional will check multiple factors to ensure all air conditioning system components are operating properly, and that the system is meeting the manufacturer’s expectations for efficiency.