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oven opening construction - 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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  • oven opening construction

    i think you are going to need the angle iron. i wish i would have taken a picture when i did mine. it's a little tricky. i have posted a sketch of how i did it at <http://www.cpsusa.com/ebay/angleiron2.jpg>www.cpsusa.com/ebay/angleiron2.jpg (as viewed from the top).*

    you need two pieces of iron. an angle iron and a flat piece of iron (i got mine at home depot).*i cannot imagine how to cut the angle irons without an angle grinder. (maybe someone else has some suggestions re: cutting the iron).**

    i completed*the row around the dome except in the area next to the angle iron. the angle iron is about the same height as the row of bricks laid next to it and serves as a brick substitute. the angle iron was placed like a pup tent. you then take a brick and place it on top of the angle iron and the flat iron and then sort of move the angle iron and the flat iron back and forth (towards and away from the center of the oven) until your eyeball tells you that the bricks to be laid on top of the irons will line up at roughly the same height as the bricks on the next row. (try to match the interior top of the bricks, not the bottoms). you then slather mortar all around the angle iron to hold it steady and go have a beer.*

    you then come back and begin laying bricks on top and find that you really don't have it lined up too good and then redo it several times. by the fourth beer its starting to look pretty good. for piece of mind i cut a keystone brick to fit as the middle brick in the bricks laid on top of the angle iron because (1) the bricks kept slipping off the angle iron and (2) i needed the arch support given by the keystone to hold them all in place. the rows got a little ugly above the angle iron but by using a little more mortar here and a little less there i was able to even things out withinin a couple of courses.

    hope that helps...

    bob





    ----- Original Message -----
    From: <mailto:marirose@mindspring.com>kanznenbaumberg
    To: <mailto:fornobravo@yahoogroups.com>fornobravo@yaho ogroups.com
    Sent: Thursday, October 28, 2004 7:10 AM
    Subject: [fornobravo] Problem building a dome


    Hi,
    I've got a problem... I can't figure out how to place the dome's
    firebricks above the opening. I made the opening without a metal
    angle. The opening is an arch. Please help.
    Stanley
    Pizza Ovens
    Outdoor Fireplaces

  • #2
    Typically, angle iron is used to support the door opening. But, you
    shouldn't have a real problem doing it without steel. In fact I'm of 2
    minds about the steel myself -- on one hand, it doesn't suffer any
    degradation like mortar might and thus gives me some insurance that
    it'll stay there. On the other hand not sure about the long term
    effect of the smoke on that steel and I know the steel moves
    differently than the brick does so you don't want to encase the steel
    in mortar.

    Making the opening an arch is actually the key to success without
    steel I think. A flat opening would be more difficult. In your case,
    just make a form of plywood & 2x4s in the shape & size you want. Cut
    out 2 plywood sides and screw in 2x4 spacers so the thickness of the
    form is sufficient to support your bricks. Then you lay the rings just
    as if you had brick under them. With an arch you're making a compound
    curve (curving in the plane of the oven while arching) so some extra
    cutting with your saw/grinder/chisel may be needed but should result
    in a nice looking (and performing) door opening.

    Comment


    • #3
      Hi Stanley,

      I agree with Jim on the point of building an arched opening, its not easy but can be achieved with a little patience. One of the problems you will be encountering is the visibility of the arch and your perception that it will not stand up. The depth (length of the bricks) of the arched opening at the bottom of the arch is considerably less than when you get to the top of the arch (because the dome is receding in diameter). Hence, one believes that it wonít stand up and I will not be able to build it. All you have to do is construct an arch form as Jim suggested, now for the fun bit, cut some pieces of wood to the same dimensions as your firebricks / half firebricks. Then use these as templates to determine the type / angle, and, so forth of cut that you require for the arch bricks to meet and marry up with the dome bricks. Transfer your template to a firebrick and cut, belive me it will work, and donít get hung up on the fact that you may have large mortar joints. Yep, it would be better if the joints were as small as possible, however, I have seen many old ovens still in use that have wide mortar joints and donít look like they are about to fall down.

      Alf

      Comment


      • #4
        Well... You are right! That could be a solution.*
        But yesterday I got tired thinking about it, knocked down the arch and went ahead with a 1/4 steel*angle.*
        We hope to finish the dome today and start putting up a chimney.
        Thanks,
        Stanley

        Comment

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