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Starting the Chimney-HELP!!!!! - 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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Starting the Chimney-HELP!!!!!

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  • Starting the Chimney-HELP!!!!!

    Ok men,

    I call on you now because I am at the point where I will be doing the
    chimney vent and stack itseld. I planned on having a vent hood fabricated locally and after showing the design and stainless steel because of rusting I got an estimate of $2200.00. I was floored. I redid the plans and dropped the gauge of the steel. I am waiting for the new estimate to come back but I don't think it will be much better.

    Does anyone have any plans that would work better for a Gable Styled oven that will have the vent and chimney enlosed. I am open to anything that would work and would be cheaper than I am looking at now

    Men... ideas.... anyone... I am about to come onto the home stretch to finish this and then we can do some cooking!

    Hope to hear from you all...
    CIAO Tutti!!!

  • #2
    Flu tile - about $5 for a 1 foot section - $20 - $30 for the liner - I found mine at the local mutual materials. It's much heavier than a metal chimney so it requires substantial structural support but it's cheap. I'm at the same point myself - building up the vent area. I built a stone arch initially to support the chimney and decided I need an angle iron to reinforce my structure. I'm still working out the surround (probably half fire bricks with a half inch air gap) for the flu tile chimney but I'm pretty close to going vertical. Obviously you'll need to build up your own vent but you can search this forum for examples. Paulages made a masonry arch that is quite sturdy and would likely support a masonry chimney - he transitioned to a metal chimney however, but if you search for his oven he has great pictures of arch construction. I wish I had seen those before I crafted my more delicate arch. Aravelos53anos also has posted pictures of a masonry arch transitioned to masonry chimney.

    Hopefully 2 weeks away from my first pizza!

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    • #3
      Build it yourself

      You can build the vent out of refractory firebrick. Depending how comfortable you are with cutting bricks, you could duplicate your vent with splits (half thickness fire bricks) or you could just lay up decreasing size courses of ordinary firebricks to transition between your entry and flue. Just build a wood support in your oven entry to support the construction. Your wood form could be topped with bent quarter inch plywood for an elegant arch, but that's by no means necessary. For the span, the strength of a real refractory mortar like quick-set 50 would work better than the portland-fireclay-sand mixture.

      You can also build inner and outer forms from plywood and cast a vent from refractory concrete.
      My geodesic oven project: part 1, part 2

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      • #4
        I am really happy with my cast refractory vent.

        I built the forms from plywood, filled it with Pryor Giggey Insulcast, I think I would use a non-insulating castable if I could redo it, I was (and I am) slightly worried about strength.

        Then I ordered a duratech Anchor plate and 2' chimney, The chimney pipe arrived yesterday and it is a serious piece of engineering, well constructed and well insulated.

        I have pointed out in previous posts that the vent is drawing very well.

        See pictures and commentary in this thread. Vent discussion starts at post #42.

        Drake
        My Oven Thread:
        http://www.fornobravo.com/forum/f8/d...-oven-633.html

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        • #5
          Back to one.

          Hey actor. Hows about you act like you know how to build it. Your motivation is to build a chimney. And... Action!

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          • #6
            metal vent

            Here's a vendor who is selling custom forge hoods on eBay.





            Needless to say, this is really close to what we need for venting brick ovens.

            No connection etc.
            Last edited by dmun; 08-18-2006, 05:26 PM.
            My geodesic oven project: part 1, part 2

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