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Plugging the Chimney - 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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Plugging the Chimney

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  • Plugging the Chimney

    I'm the guy from another thread who built a brickwood oven and am trying to modify it. One of the suggestions was that I close off the chimney, add an entrance arch at 63% and put the chimney outside of the entrance arch.

    I've built the arch and closed off the front of the oven, but I'm wondering about how to go about closing the chimney. Can I just put firebricks over the opening and have a a five inch square hole in the top-front of my oven that is four inches deep. That would be the easiest thing.

    Alternatively, could I screw some kind of metal support to the ceiling of the oven and put bricks on top of that?

    I tried mortaring in bricks but it doesn't look like they were going to hold so I knocked them out and now I have a five inch hole in the top of my oven.

    I know these are totally newbie questions. Any help is really appreciated.

  • #2
    Re: Plugging the Chimney

    Since you have access to the top, I would place a form over the hole from the inside, brace it well, then pour a refractory concrete from the top to make a 4" thick plug. Break up some firebrick scraps into 3/8" and less gravel, mix it with your refractory cement at a ratio of about 2 parts aggregate to one of cement. Discard the dust from when you make the aggregate.

    https://www.youtube.com/watch?v=CNcFwByeUzw

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    • #3
      Re: Plugging the Chimney

      Tscarborough,
      Thanks. I just ordered a small batch of castable refractory. I've got a wheelbarrow full of firebrick fragments.

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      • #4
        Re: Plugging the Chimney

        You may need to grind some of the hole on the outer side a bit so your cast plug will be tapered. You wouldn't want the plug to fall in.
        Kindled with zeal and fired with passion.

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        • #5
          Re: Plugging the Chimney

          David,
          Thanks for the tip. I'll take that into account.

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