June 23, 2018, 08:32:09 AM

Author Topic: Stuffing the Hole!  (Read 7705 times)

Offline Hi yo silver

  • Hero Member
  • *****
  • Posts: 843
Re: Stuffing the Hole!
« Reply #15 on: December 20, 2012, 12:58:55 AM »
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
Blue Ridge Mountains of VA   Hi Yo Silver! MC9 Gone, not forgotten