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HVAC question. Any way to baffle a duct?
Our downstairs bedroom always seems to get more hot or cold air than any other room. So in the summer you get frozen out, burned out in the winter. Never been an issue since it was the guest room and rarely used, now Thuy's dad is living there, so it's becoming one. It has one 10" square vent that I have closed pretty much all the way, but the air is still whistling through. This room is the last one the duct, and I have all the other vents wide open. There is also a return duct in that room. It appears to just run upstairs to a grate near the return for the unit.
Anything I can put in that vent to baffle the air? Would like the cut down on air volume and speed, which should take care of the noise. The duct is between two floors, so no access to ductwork.
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