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Author Topic: Stuffing the Hole!  (Read 2362 times)
Hi yo silver
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« Reply #15 on: December 19, 2012, 04:58:55 PM »

To clarify; what you need to seal the duct ends is an "intumescent" material. It is used to seal openings in fire resistance rated walls. It expands when it's exposed to heat. Sorry, I should have said that in the first place. Len posted the best link. The pillows are exactly the right thing. What He Said...LOL!
Dennis
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Blue Ridge Mountains of VA   Hi Yo Silver! MC9
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