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Thickness of Hearth - Forno Bravo Forum: The Wood-Fired Oven Community

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New Forno Bravo Forum Feature

Forno Bravo Forum Community,

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Thickness of Hearth

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  • Thickness of Hearth

    Hi,

    I've search for this but can't find anything, so just want to double check. Is 3.5" thick enough for the concrete hearth? It'll be reinforced with rebar and will have the fibre board on top + oven and housing. By my reckoning this could be:

    300 bricks for housing * 2.5kg = 750kg
    150 fire bricks for dome and floor (guess similar weight) = 275kg
    ? bricks for chimney (yet to be designed)

    So guess would want strength for 1.5t to be sure. Any thoughts? Have enough concrete to make it upto 5" thick if required (presumably the extra weight of the concrete is better rather than stressful on the bricks below?).

    George

  • #2
    Re: Thickness of Hearth

    Originally posted by GeorgePalmer View Post
    Any thoughts?
    Its all about the span as to how thick the concrete is, the bigger the span the thicker it should be.
    The English language was invented by people who couldnt spell.

    My Build.

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    • #3
      Re: Thickness of Hearth

      It's 1.6m x 1.6m with a triangle (0.95x0.95x1.35) cut out the corner, for the classic corner design.

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