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Hearth pour - 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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Hearth pour

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  • Hearth pour

    Hi guys,

    Well I am about to lay the foundation soon as the weather clears up and the suppliers are open again.

    Anyways I am thinking ahead re the hearth and had an idea I thought I would ask opinions on or if anyone else has tried it.

    Well I am using the 8inch cement blocks like everyone else for the stand but I was thinking rather then forming up the hearth frame with wood, that I would use the 4inch wide cement blocks as the form work. Ie lay a row of the 4 inch wide blocks to stop the cement from pouring out the sides and these blocks will become part of the wall.

    Has anyone else tried this or have any comments on it.

    Thanks
    ikhan42

  • #2
    Re: Hearth pour

    Check your PM's

    Comment


    • #3
      Re: Hearth pour

      I didn't know Kevin Rudd was building an oven. That's big news.
      Kindled with zeal and fired with passion.

      Comment


      • #4
        Re: Hearth pour

        Originally posted by david s View Post
        I didn't know Kevin Rudd was building an oven. That's big news.
        LOL yeah our PM is a busy man does everything but run the country. Hey hes a politician after all.

        Thanks johnny but I am in sydney and the shipping would make it an expensive exercise from melbourne.

        Any comments on my idea though. I figure I am using the bricks anyways so why buy wood that I will end up ditching. The slab would still be sitting on 4 inches of concrete blocks on all sides and will also be resting on Bondek so hopefully weight distribution wouldnt be a problem.

        The way I figure if the scotts oven relies on reinfocement bars to suspend their oven on teh concrete briks and its a heavier oven then what I am proposing shouldnt be an issue. But would like the engineering type to maybe give some input.

        thanks again
        ikhan42

        Comment


        • #5
          Re: Hearth pour

          I would think it should be ok, make sure the ovens weight is over the blocks not suspended on just the slab. For Sydney supply see Andrew at Field Furnace Refractories in Wetherill Park.

          Comment


          • #6
            Re: Hearth pour

            Originally posted by Johnny the oven man View Post
            I would think it should be ok, make sure the ovens weight is over the blocks not suspended on just the slab. For Sydney supply see Andrew at Field Furnace Refractories in Wetherill Park.
            Johnny,

            I have been emailing Andrew from field furnace as they have all the stuff in one place, I will definately be having the hearth slab resting on the concrete bricks I cant see how the scotts oven with the floor as it is in the Alans book is a secure or sturdy oven the engineering doesnt make sence to me.

            Does anyone know anyone on this forum who has done what I am proposing so I could talk to them about pitfalls.

            thanks
            ikhan42

            Comment


            • #7
              Re: Hearth pour

              Sure you can. I am going to use 4x4x16 block (sitting on 6x8x16 CMU) as a form on 2 sides of mine.

              Comment


              • #8
                Re: Hearth pour

                Hi
                I was thinking the very same myself, but with two or three courses of engineering brick. then bringing the hearth slab up to the level of the top brick. i plan on building an enclosure, the same dimensions at the base for the verniculite, so the red bricks showing around the edges won't show from the top, if that makes sense. Building a wooden form for the hearth slab, does seem a lot of unnecesssary expense, to my mind.

                Ikhan - you go first!

                Jon
                Cardiff
                UK

                Comment


                • #9
                  Re: Hearth pour

                  I will definitely be having the hearth slab resting on the concrete bricks I cant see how the scotts oven with the floor as it is in the Alans book is a secure or sturdy oven the engineering doesn't make sense to me.
                  Nor to anybody else. Having the support slab hung from a few pieces of exposed rebar is bad on so many levels that I'm surprised that anybody thought of it in the first place. I suppose the original idea was with the insulation below the support slab (?) that it helped keep the slab hot, as if the rebar pins didn't act as a thermal bridge...
                  My geodesic oven project: part 1, part 2

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