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Soundproofing existing ducts/vents in basement (drywall is already up)

So long story short I recently converted a basement into an apartment and plan on living down there. I insulated in between the joists and double drywalled everything and that is all ok. The only ...
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439 views

Quieting cold air return vent

My gas furnace is in a dedicated "closet" inside the utility room. The closest cold air return is about 5' away (laterally) in the ceiling of the hallway right by the bedrooms. When the furnace ...