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To cast or not to cast? - 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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To cast or not to cast?

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  • To cast or not to cast?

    Right, a brief report is in order.

    I have been acquiring increasing amounts of bricks and collating a list of UK refractories suppliers (more than I thought).

    Still thinking about casting the top part of the dome. Thoughts (lose!):
    • thickness of the cast - the material will be similar to the firebricks used in the bottom rows of the dome, so do I need the same thickness? This would make the cast half a brick thick, which seems a lot. But if I don't I won't have the same thermal mass as the original
    • cracking - will it be liable to cracking due to thermal cycling?
    • how think are the Forno Bravo cast ovens? In the photos they look 2-3", which is far less than half a brick
    • and also - the top part of the dome would be probably approx. 50cm (20") in diameter - is this not too big as a single cast?
    • or should it be cast thinner and additionally rendered from the outside? Would that change anything?
    • or am I talking rubbish and I should just follow the plans ... ?

    Any advice, experience or suggestions, pretty please?

    Best wishes,
    W.
    "Carpe diem." - Fish of the Day (The Uxbridge English Dictionary)

  • #2
    Re: To cast or not to cast?

    Probably best to read this
    http://www.fornobravo.com/forum/f28/...rill-2207.html

    and then ask ENZ since he is the only one I have seen do it. Now, I did cast my vent transition and a dome plug (approx 15" in dia and 3" thick). The material I used (KS-4) has held up great and am not worried about cracking at all, but it required a specific heat cure schedule. So you could not use it unless you cast pieces small enough to fit in an oven or had a friend with a very large oven/kiln.
    Wade Lively

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