AlGreen
Member
We've lived in our current house for about six years. It's a two zone set-up with Lennox furnaces and Carrier central air units (the Carriers were bought by us three years ago). I've been using fiberglass filters the whole time, mostly because of concerns about higher MERV pleated filters causing pressure drop issues. Short of having an HVAC tech come out to run calculations on our system, am I correct that there's no way to know if it can handle anything more than the fiberglass filters?