Of course, there are some steps you can take to ensure your furnace is being well cared for between tune-ups. An easy but critical step to preserving the integrity and performance of your furnace is regularly changing your air filter. The air filter traps dust, dirt, pet hair, and other debris, preventing it from getting inside of the furnace when it’s pulling air in. However, if the air filter becomes too clogged, your furnace fans struggle to move air, placing undue stress on your furnace and causing its performance and likely its longevity to dip. The frequency at which you should change your filter will likely be noted either in your furnace’s owner’s manual or on the packaging of the filter itself. You can take other steps to ensure your vents are unobstructed and stay on top of your maintenance schedule.