Installing a 4-inch furnace filter is a great example of why the way a filter is set up matters just as much as the filter itself. In many homes, a 1-inch filter is placed loosely in the ductwork with a small cutout, which often means it never seals properly. When that happens, air can bypass

If you’ve ever stood in front of your furnace and wondered why there are different efficiency ratings, you’re not alone. Most homeowners hear “80%” or “90%+” and assume it’s just a number on a sticker. In reality, that number has a lot to do with how your furnace is built, how much heat you actually

For decades, most furnaces came equipped with PSC (Permanent Split Capacitor) blower motors. These traditional AC motors did their job, but they were notoriously inefficient. As technology and energy standards advanced, HVAC professionals began phasing them out in favor of ECM (Electronically Commutated Motor) and variable-speed DC motors—dramatically improving efficiency, comfort, and cost savings for