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Discussion Starter · #1 ·
We had some folks come out and do duct sealing for us. They were able to seal the supply ducts, but were unable to get the return ducts to seal. To do so would have required getting into walls, etc. We were told that it isn't a big deal. Sealing the supply side is most important. I would be curious to get the unbiased opinion of others if this is an issue.
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