Most disposable air filters last three to 12 months. Life span varies by model, but in general, the thicker the filter, the less often it needs changing. But the filter thickness you use is dictated ...

If you were to let unfiltered air into your furnace, its performance would suffer as dust settled on the heat exchanger and other parts, and that would reduce the service life of your most important ...

HomeServe Editorial reports that regular furnace tune-ups prevent costly repairs, improve efficiency, and extend the lifespan ...

If you’re thinking you only have to change your furnace filter once a year, you may be shortening the life of your furnace.

A man kneels while pulling a dirty filter out of a furnace - Backyardproduction/Getty Images Changing your furnace filter is one of those home maintenance chores that's easy to forget until you've got ...