Changing your furnace air filter: Here’s when and how to do it

One of the most important things you can do to help your furnace function properly is also the easiest! Here at Krantz, we like to call that a win-win.

Changing your furnace air filter is simple, yet it gives back tenfold. All you need to do is know the size of your filter and have an unused one handy.

Why change my air filter?

Think of this like your car’s oil. Can you drive around with dirty oil? Yes, but it’s a surefire way to guarantee a future breakdown, decrease in performance, and early replacement.

Your air filter is no different. When it is overridden with dust, dirt, debris, mold, viruses, dander, and bacteria, your furnace works harder to move air. Not only are you more likely to have allergens and dust in your home, but your unit must push harder to have the air move through the filter. This spells breakdowns, replacement parts, a dirty home, and higher energy bills.

How do I change my filter?

Most air filters come with a pamphlet informing you of the size of your filter. If you are unsure, open your air filter box and check the size. If you use a filter that is too large or too small, your unit won’t operate properly, and you risk damage.

Shut off your unit. Locate the filter box and take off the cover. Remove the air filter, paying attention to the directions of the arrows on the filter. Put in the new filter with the arrows going the same way. Replace the cover and turn back on the unit.

How often do I change my filter?

Most companies recommend replacing your filter every three months, but depending on your home’s activity level, pets, moisture, or allergens, you may need to do it more or less often. If your filter becomes dirty faster than three months, replace it sooner.

Contact Krantz Kooling to schedule your regular maintenance. During this time, our technicians can give you feedback on how often to replace your filter based on your home’s unique needs. Call us today!

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