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Posted by HeatPro on October 19, 2005 at 16:57:16:
In Reply to: Safe soundproofing Insulation posted by Jon on October 17, 2005 at 08:29:39:
Boiler insulation is usually the same or similar duct board that is used for making fiberglass duct from duct board. It can be found at heating/cooling/plumbing suppliers.