Agent Orange: Friendly fire that keeps on burning. | Are the furnace outlets in the floor, or the ceiling? If they run through the underfloor space, there may be one or a tear in the ductwork that is blowing into the skirted space.
Our spec home also has a wild return with flexible insulated duct that runs to the outlets in the ceiling. Evidently the ducts are intact in the attic because we don't suffer any draft coming in the vents to the outside, which are many: laundry room ceiling vent, dryer, kitchen hood, bathroom1, and bathroom2. |
Fresh air coming down bathroom exhaust fans.
