Flex Wrap?

dolores57 Posted By dolores57, Dec 10, 2005 at 5:39 PM

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  1. dolores57

    New Member 2.

    Nov 19, 2005
    I am curious about this insulation that goes around SS liner. I have noticed some people seem to think it necessary and other do not. I would like to get feedback from the folks who do and who dont use it and why. thanks d
  2. elkimmeg

    Guest 2.

    The insulation holds in heat and provides better liner draft. It also prevents heat from escaping and add an extra layer of protection should a chimney fire occure or your chimney is not in the best condition, holding in heat is an extra margine of safety to combustiables in case of a crack in the brick work or liners. Many liner manufactures spec insulation so it is a necessary component to gain UL certification, It is best to check liner you are planning to install, download the installation instructions and read the requirements. Many will require insulation, when the chimney has exposed walls to the outside. At this time Code does not require insulation, unless it is part of the manufacture's listing
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