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John's 42inch Aussie WFO - Forno Bravo Forum: The Wood-Fired Oven Community

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John's 42inch Aussie WFO

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  • John's 42inch Aussie WFO

    Hi all

    I'm from Sydney Australia and came across this Web site about a year ago. Since then I have been trawling through endless posts and have finally taken the plunge and begun work on my 42inch WFO!!

    I have never laid a brick in my life so am looking forward to the challenge

    Not only am I to build the oven but also an attached barbecue/Spit (charcoal)



    Below ground preperation with approx dimensions of 5000x4000x80
    Attached Files
    Last edited by John K; 11-03-2009, 04:06 AM.
    John
    __________________
    My Oven Thread:

    http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

    The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

  • #2
    Re: John's 42inch Aussie WFO

    As I have not laid bricks before so cheated and brought in my bricklayer to build the skeletal structure of the barbecue and WFO base

    In relation to the suspended WFO slab I utilised a half brick approach on the final brick coarse that will hide any concrete from view. Internally I have utilised 2 steel lintels for support (over engineered as per everything else I do!!). Steel sheeting has been laid down and expansion foam installed to allow for concrete movement

    Photo's to come shortly!!
    Last edited by John K; 09-16-2009, 08:27 AM.
    John
    __________________
    My Oven Thread:

    http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

    The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

    Comment


    • #3
      Re: John's 42inch Aussie WFO

      Hey John,
      Welcome!

      It sounds like you are getting ready to start on the dome. Make sure you insulate under the dome (and above the hearth slab). You mention a suspended hearth slab, we mostly don't do that, but each build is different. Did you download the plans from the forno bravo store (they are free!).

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

      Comment


      • #4
        Re: John's 42inch Aussie WFO

        Good luck John!
        Take Drakes advice and download the free Forno Bravo plans...having step by step instructions makes all the difference in the world.
        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


        • #5
          Re: John's 42inch Aussie WFO

          Thanks guys I am realy looking forward in getting stuck in.

          Yes I downloaded the plans sometime ago and found them very handy along with everyones posts, builds CAD Drawings and so on and was one of the selling points to my wife!!.

          I think suspended slab was a bad use of terminology from my part so appologies, I do have brickwork all the way around so it will be standard construction method. I laid the hearth slab some weeks ago and am in the process of laying the Insulation Bricks.

          Insulation bricks you say ? I decided after long discusions with the Firebrick supplier (Only one in Sydney I could locate) Field Furnace Refractories that I will achieve better insulative properties using the Insulation Bricks rather than Vermiculite so decided to go down that path.
          Insulation brick (I.F.B) 230x115x75mm.

          Drake/Breven your WFO's look fantastic and if I can get mine looking half as good I will have succeded!!

          Cheers
          Last edited by John K; 09-16-2009, 08:22 PM.
          John
          __________________
          My Oven Thread:

          http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

          The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

          Comment


          • #6
            Re: John's 42inch Aussie WFO

            I have attached some of my earlier photos during the stand and hearth construction. I originally was to build a smaller oven and therefore built the stand to suite.

            My wife then decided this was going to be too small so I was forced to part demolish the stand and extend.
            Attached Files
            John
            __________________
            My Oven Thread:

            http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

            The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

            Comment


            • #7
              Re: John's 42inch Aussie WFO

              Performed a dry run of the insulation bricks last saturday. They appear to sit nice and level.

              The fire brick supplier recomended that I set the insulation bricks that sit under the wall of the WFO and allow the rest to just sit in place. This will assist if I ever need to change any that sit under the cooking floor.
              Attached Files
              Last edited by John K; 09-21-2009, 04:42 AM.
              John
              __________________
              My Oven Thread:

              http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

              The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

              Comment


              • #8
                Re: John's 42inch Aussie WFO

                Hi John, why are you using insulating firebricks on the floor? Are you going to then use normal firebricks on top of that?

                Cheers.

                Comment


                • #9
                  Re: John's 42inch Aussie WFO

                  Hi, that's correct I will lay the firebricks (cooking surface) in a Herringbone pattern on top of the Insulation Bricks.

                  Do you see a problem with using the Insulation bricks rather than vermiculite base?
                  John
                  __________________
                  My Oven Thread:

                  http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

                  The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

                  Comment


                  • #10
                    Re: John's 42inch Aussie WFO

                    No, they'll work better but be more expensive. Hey, if you've got the money go for it.

                    Does the kit that you referred to come with pre-cast dome pieces or firebricks. I went to their site and they point to another site that shows pre-cast pieces.

                    Thanks.

                    Comment


                    • #11
                      Re: John's 42inch Aussie WFO

                      The AUD $1,300.00 kit comes with Firebrick but I have seen their precast ovens in their factory. I am unsure of the cost. If you give them a call they are very helpful.
                      John
                      __________________
                      My Oven Thread:

                      http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

                      The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

                      Comment


                      • #12
                        Re: John's 42inch Aussie WFO

                        Hey John,
                        Welcome to the club, Lookin good so far.. Are the insulating bricks strong enough to support the dome ? I understand they can be cut with a handsaw, I am working on a home heater and was thinking about the insulating brick in the forebox.

                        Mark

                        Comment


                        • #13
                          Re: John's 42inch Aussie WFO

                          Hi Mark

                          The supplier actually recommended the bricks over the Vermiculite (probably as they make more $). I did ask the same question about strength to which he advised that as long as I mortared down the Insulation bricks that sit under the Walls of the oven I will not have any issues.

                          I have seen 20 odd ovens built by them/their customers (photos) that used bricks over vermiculite so can only assume that they are strong enough. I guess I will find out shortly!!!

                          I am unsure if your can cut these with a hand saw but can confirm that they are very light items.

                          How heavy will your fire box be? Will the load not be distributed across the Insulation evenly?
                          Last edited by John K; 09-19-2009, 04:59 AM.
                          John
                          __________________
                          My Oven Thread:

                          http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

                          The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

                          Comment


                          • #14
                            Re: John's 42inch Aussie WFO

                            i just wanted to be see if the insulating fire brick could take direct flame ? I will Probaby put them behind the firebrick, better off i think.....

                            Comment


                            • #15
                              Re: John's 42inch Aussie WFO

                              Not sure about direct heat but I would be more than happy to send an email to the supplier and ask if you like?

                              Otherwise as you said place the insulation bricks behind the Firebricks.
                              John
                              __________________
                              My Oven Thread:

                              http://www.fornobravo.com/forum/f8/j...-wfo-7911.html

                              The difference between a successful person and others is not the lack of strength, nor the lack of knowledge… but rather, the lack of will power.

                              Comment

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