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Insulating a chimney liner

  • 16-09-2016 9:38pm
    #1
    thomasthomas19
    Registered Users, Registered Users 2 Posts: 102 ✭✭


    Hi When a builder is building a chimney with liners can they pour the vermiculite in out of the bag or does it have to be mixed with cement

    Cheers


Comments

  • #2
    Poor Uncle Tom
    Registered Users, Registered Users 2 Posts: 14,547 ✭✭✭✭Poor Uncle Tom


    It can be used on it's own or mixed with cement, if it's being mixed it is recommended at 6:1 mix (6V:1C).


  • #3
    thomasthomas19
    Registered Users, Registered Users 2 Posts: 102 ✭✭thomasthomas19


    Poor Uncle Tom wrote: »
    It can be used on it's own or mixed with cement, if it's being mixed it is recommended at 6:1 mix (6V:1C).

    Is there any advantage mixing it .


  • #4
    BryanF
    Moderators, Home & Garden Moderators Posts: 10,146 Mod ✭✭✭✭BryanF


    New build or existing Reno?
    Is chimney On external wall?
    How did arch/eng deal with blockwork thermal bridge?


  • #5
    thomasthomas19
    Registered Users, Registered Users 2 Posts: 102 ✭✭thomasthomas19


    BryanF wrote: »
    New build or existing Reno?
    Is chimney On external wall?
    How did arch/eng deal with blockwork thermal bridge?

    Hi
    This is just a general question
    No build . Just seen a lorry delivering. Bags of at a hardware store. And wondering . Do builders mix it or is ready to pour from bag into chimney

    Thanks


  • #6
    BryanF
    Moderators, Home & Garden Moderators Posts: 10,146 Mod ✭✭✭✭BryanF


    I poured the vermiculite straight in my chimney around the flue liner when Stove was installed. Flue liner was only guaranteed for ~10years so at least with loose beads i can replace the liner in the future if required


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  • #7
    Poor Uncle Tom
    Registered Users, Registered Users 2 Posts: 14,547 ✭✭✭✭Poor Uncle Tom


    thomasthomas19 wrote: »
    Is there any advantage mixing it .

    Depends on the circumstances, the location of the chimney, the amount of time the stove will be lit, etc., A mute point in your case as there isn't an actual installation.


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