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chimney placement - Forno Bravo Forum: The Wood-Fired Oven Community

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I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

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.

Ask Me Anything New Forum Feature

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.

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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  • chimney placement

    For the engineers out there- is there any reason my chimney can't be offset of center once it clears the front of the oven? I thinking of making some kind of historical re-creation like a church and using a "bell tower" as chimney.
    Any thoughts greatly appreciated, personal experience valued even more.
    James

  • #2
    Re: chimney placement

    No problem, offsets are fine, as long as there are no more than two bends, and they are no more than 30 degrees per (that's the code).

    If you look at my build you will see that both chimneys are offset, but at smaller angles.
    My geodesic oven project: part 1, part 2

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    • #3
      Re: chimney placement

      Somewhere out there (I believe somewhere on this site, but I couldn't find it) there is a discussion of brick ovens back in the day (way back) and how the placement of the chimney was in many cases from front, up and over the dome and then up. If I recall correctly there was even the point made that it helped the draw due to the heat of the dome. My concern would be the loss of heat from the top of the dome literally up the chimney, perhaps some adaptation where it set atop the insul blankets, then you would have the draw question anew. To the best of my recollection the setup looked something like below:

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      • #4
        Re: chimney placement

        Mechanically there should nothing disastrous about offsetting the chimney over the oven. In the diagram above there would be no problem for pizza, but the oven would be expected to lose heat faster in bake mode. Also...the need for a cap to keep rain out would probably be a bit more important. It would probably be easier and better to simply use metal flue conduit and keep it relatively vertical which would allow normal insulation of the oven. (In the diagram the flatness of the flue is a bit concerning but could be overcome by making the chimney taller.)

        Good Luck!
        Jay

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