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Casting a cement vent - Forno Bravo Forum: The Wood-Fired Oven Community

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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:
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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.

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Casting a cement vent

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  • Casting a cement vent

    I'm thinking of casting my own vent, am i wrong in thinking that Portland cement will crack because of the high temperature ,what is the right material
    for it ? Is it really worth the trouble or should i just go with regular firebrick
    case for the flue????????
    Thanks for taking the time in answering this "newbie's" questions!

  • #2
    Re: Casting a cement vent

    Masako,

    The vent will get very hot. I wouldn't mess around with portland cement. There are special refractory casting products specifically made for this. I don't remember the names of the products, but they have been mentioned in several other threads. Try doing a search.

    You can always use firebrick. It's really not that hard and probably faster than building the mold, casting and curing.

    Good luck! Looking forward to watch your progress.
    Ken H. - Kentucky
    42" Pompeii

    Pompeii Oven Construction Video Updated!

    Oven Thread ... Enclosure Thread
    Cost Spreadsheet ... Picasa Web Album

    Comment


    • #3
      Re: Casting a cement vent

      The main advantage in building a firebrick vent is that it won't take ages to cure. Also, you already have the materials on hand from building your dome.
      My geodesic oven project: part 1, part 2

      Comment


      • #4
        Re: Casting a cement vent

        Arigato,Ken san!
        I believe I will go with the firebrick idea.

        Comment


        • #5
          Re: Casting a cement vent

          Domo ,Dmun san!
          Little by little the advice that I'm getting is giving me
          more confidence to go on with this project.
          As we say here, Gambatte!!!!! One of the translations being,"Don't Give Up"!!!!
          Thanks so much!

          Comment


          • #6
            Re: Casting a cement vent

            Masako...go with the firebrick. There's plenty of examples here and it's not that tough. Many of us have had no experience at all with brick and have managed to pull it off- just following examples here on FB.

            Good luck and take lots of pictures!
            Check out my oven progress here: http://www.fornobravo.com/forum/phot...dex.php?u=4147

            See ALL of my pictures here:
            http://picasaweb.google.com/Brevenc/...OutdoorKitchen

            Comment


            • #7
              Re: Casting a cement vent

              Yes, share pictures with us! Do we have any other oven builders from Japan? This might be another first!
              Ken H. - Kentucky
              42" Pompeii

              Pompeii Oven Construction Video Updated!

              Oven Thread ... Enclosure Thread
              Cost Spreadsheet ... Picasa Web Album

              Comment


              • #8
                Re: Casting a cement vent

                There is at least one other in Japan - I sent the contact info to James (geeze has it been 2 years) a while back and he posted pic of the oven in the oven picture area.



                Here's the link to the pic above - for some reason the pic is not showing right now.

                http://www.garden-pizzeria.com/Pizza...Photo%202.html


                It was a home made casted (in pieces) oven fed from the fireplace below - very cool. here's the link

                Garden Pizzeria Top Page

                Christo
                Last edited by christo; 08-13-2008, 07:56 AM. Reason: picture link did not work
                My oven progress -
                http://www.fornobravo.com/forum/f8/c...cina-1227.html
                sigpic

                Comment


                • #9
                  Re: Casting a cement vent

                  On page 41 of instructions it tells you how to cast a vent, makes no mention of material except it says (let it set for several days so the "CONCRETE" can cure.

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