Cut OC703 to fit directly on the furnace panels, preferably glued on. Then completely enclose them in a closet of 1/2" MDF. Or 5/8" sheetrock. With another layer of OC703 glued on to the inside of that. I did something like that with something a lot noisier than a furnace. The biggest challenge is enclosure. Any air gap and sound goes right through. So covering ducts and sealing around them is key. But worth it! Good luck!
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- 87 posts total
- 87 posts total