That’s one reason why you need furnace filters, and there’s another. Filters purify the air coming from the furnace so you don’t have to inhale microscopic dust particles and other contaminants.

Furnace maintenance is also crucial during cold spells. Brady Benedetti from Metro Heating & Cooling said, "Just make sure your filters are clear. If you use 1-inch filters, change them once a ...

One of the easiest preventative measures you can do to ensure your furnace is running properly is to check the air filter. If you notice an air filter is dirty that causes it to restrict the air ...