4 Top AC Usage Mistakes That Cost You Money

Most homeowners are aware that duct leakage can sap 20% to 40% of the energy out of even a well-operating air conditioner. That being said, it’s far from the only element that can impact your air conditioner’s everyday efficiency. Here are just a few everyday usage mistakes that could be impacting the efficiency and lifespan of your AC unit.


It may seem logical to adjust your thermostat when you’re leaving the house, but if you adjust it more than just a few degrees, you could be losing out on efficiency. Your system will have to work harder to restore the temperature to its original level. That being said, a programmable thermostat can easily alleviate this problem and ensure that you always walk into a cool house. Plus, installing a programmable thermostat could save you up to 10% on your heating bills.

Leaving windows open

Though most of us love to enjoy the fresh, outdoor air every once in awhile, it’s simply not efficient for your air conditioner and results in overuse. If you must open a window while your system is on, make sure it’s only for a few minutes. If you want to enjoy the outdoor air, go outdoors and return to your nice, cool home whenever you’ve had enough.

Skipping HVAC system tune-ups

It should come as no surprise that your air conditioning system needs a professional tune-up and inspection at least once each year. Some HVAC experts say up to 75% of no-heat calls in the winter are related to a lack of maintenance, and the same can likely be said about summertime AC usage.

Running the system with a dirty filter

Finally, one relatively simple maintenance task most homeowners can perform themselves is a filter replacement. According to Energystar.gov, most HVAC system filters need to be changed every one to three months, but it also depends on how often you use your system. If you still have questions or concerns, it’s always best to be safe and contact a professional.

Ultimately, avoiding these mistakes can keep your air conditioning running efficiently all summer long. For more information about air conditioning or furnace maintenance, contact us.