How often should I change my furnace filter?

This is the single most important thing that needs to be done to keep your system clean and operating efficiently. If you have a standard furnace filter, we recommend replacing it monthly even if the old one still looks clean. High efficiency filtering systems, air cleaners, and ERV, may require different schedules. Pets, environment, and number of household members can all affect how often your filter needs to be replaced.

Liberty Heating & Cooling

Hours of Operation

Monday - Friday
7:30am - 4:30pm, excluding holidays

Saturday & Sunday by appointment only

Contact Info

  • Bruce Liberty
  • Liberty Heating & Cooling, LLC
  • Call 651-260-6060
  • Email Us