Insulating heat ducts


Old 10-16-07, 08:17 AM
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Join Date: Sep 2007
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Insulating heat ducts

I have heat ducts that run thru a cold crawl-space. What is the best way to insulate these?
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Old 10-16-07, 04:44 PM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,632
2inch duct wrap
Old 10-16-07, 06:00 PM
Join Date: Mar 2007
Location: New Hampshire
Posts: 450
Its easier and "proper" to wrap the ducts in the 2" stuff but it isn't easy once its up. Depending on how much space you have between the floor and the duct, you might be able to surround the ducts with fiberglass batts.

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