Why My Central Air Has Two Filters and What It Means for Energy Efficiency and HVAC Performance
The moment you spot two air filters in your central air system, it’s natural to think something’s off—but at VentOwl.com, we’ve seen this setup in hundreds of homes, and it’s rarely a mistake. In our years of testing airflow patterns, measuring pressure drops, and analyzing energy data from real homeowners, we’ve found that dual filters … Read more