Upgrading From 22x22x1 MERV 8 to MERV 13—Is It Worth It?
In a pre-2010 HVAC system with a fixed-speed blower motor, a 22x22x1 MERV 13 filter can behave like one that’s already half-clogged—from the moment you install it. The system runs longer to reach temperature, the energy bill climbs, and the air quality improvement—while real—costs more to deliver than most homeowners expect. Here’s what most filter … Read more