It's easy as, as, hmmm. It's not hard.
- FIND your Furnace - it's either in the attic, the basement/crawl space, or a closet.
- See where the big return air duct comes into it?
(If you are an Beltwood client, a manager will provide you with free filters. Just send a text or email Home @ BeltwoodPM.com. It wouldn't hurt to look and see what size filter it is, and send that to the manager.)
This can save you up to 15% in heating AND air conditioning costs.
So, let's see, that's maybe...
$120/month x 15% = $18 for 3 minutes effort.
What does that come to per hour?
for those of us who are more visual learners, here's YouTube
Changing a Furnace Filter