Poorly designed ductwork - need opinions!
I have a fifth wheel with a heating problem. The duct feeding my bedroom is basically made of a sheet of 1/2" foam board taped across two aluminum floor joists. Both ends are capped off with foam bo...
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Good idea but no need to use round galvanized; flex pipe will do it, and while you're under there I recommend you wrap aluminum sticky tape around every joint you can reach.
