What Happens if You Forget to Replace Your Furnace Air Filter?

What Happens if You Forget to Replace Your Furnace Air Filter? - 9-month old filter

You forgot to replace your furnace filter for several months and are wondering what could happen. I have asked myself that question before because I have forgotten to change my furnace filters twice with two different houses. If you forget to regularly replace your furnace filter, your heating, ventilation, and air conditioning (HVAC) system will … Read more