How to Improve Airflow Through a Blocked Return Vent (September 2026) Trusted Reviews
Last winter a homeowner in a two-story house emailed me a photo of a return vent buried behind a bookshelf. The supply vents upstairs were blowing plenty of cold air, but the system ran almost nonstop and the bedroom above the garage never cooled off. The fix was not a new AC unit. It was … Read more