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joydesign
Sep 4, 2008, 12:24 PM
I just got a new central air conditioning for my 2100 square feet houes with one 14"x30" and 14"x14" air return. The air returns make very loud noise. My contractor said that is normal, but I don't think so. The inspector from township said they used R-6.0 ducts instead of R-8.0 ducts. Is the duct size influence the noise? How to solve this problem?