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Flue liner/Chimney air space - Forno Bravo Forum: The Wood-Fired Oven Community


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Flue liner/Chimney air space

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  • Flue liner/Chimney air space

    In the plans it says to leave a 1/4" - 1/2" airspace between the flue liner and teh bricks for expansion purposes except in the case of structural integrity.

    My question is - I'd love to use some of the base (or top, if that's better) bricks for flue support, but I don't want to mess with the laws of thermodynamics. What did everyone else do?


  • #2
    Re: Flue liner/Chimney air space

    Hi Amber,

    What type of flue pipe did you decide to go with? I used clay pipes and was told to leave a 1"-2" air space between the pipe and the brick chimney. I believe 2" is code here. As far as the base is concerned I used fire bricks for a base support cut to fit and then cemented the pipe to it. I have pictures of this in my album.

    Thanks, I hope this helps, and good luck,

    Check out my build http://www.fornobravo.com/forum/f8/b...egin-5443.html


    • #3
      Re: Flue liner/Chimney air space

      I have the terra cotta liner 4.5"x8.5"


      • #4
        Re: Flue liner/Chimney air space

        thanks for the tip, I'll check your pictures out