Jammed Exterior Vent Cap
The external vent cap for our laundry exhaust system located on the second-story brick wall of our Richmond Hill house seems to be completely jammed shut with accumulated debris and bird nesting material. No air seems to be escaping when the machine runs, and our electricity bills have noticeably increased lately. I want to evaluate the technical state of the ductwork myself. What resources explain the typical structure of these residential lines?
