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  #31  
Old 03-30-2013, 10:10 PM
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Default Re: 42" build in Virginia

I hope you havent progressed too far since that last pic.
Steel lintels and wood ovens dont work too good together, even worse its galvanized.
The zinc may poison your family, or is that the plan.
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  #32  
Old 03-31-2013, 12:38 AM
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Default Re: 42" build in Virginia

The steel being more conductive attracts the heat and gets much hotter than the refractory surrounding it leading to expansion that the refractory can't handle. You may be able to drill and chip the refractory at each end to provide some expansion space that might work. Regarding the galvanized, if it is, you should remove it. Research zinc poisoning.
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  #33  
Old 03-31-2013, 04:27 AM
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Default Re: 42" build in Virginia

Bummer. I never gave a thought to the type of metal, but it sure looks galvanized. The pieces I used on the stand were left over from a builders stock. I was originally going with an arch form but then it just became to complicated

What should I use instead, and what is the best way to remove this as the bricks an refractory are atached?

Hell, I take zinc for my prostate.......galvanized can't be all that bad on your pizza
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  #34  
Old 03-31-2013, 12:44 PM
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Default Re: 42" build in Virginia

ingesting zinc is different from inhaling the fumes it produces.
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  #35  
Old 03-31-2013, 01:20 PM
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Default Re: 42" build in Virginia

42" build in Virginia-course-11-front-close-up.jpg
My daddy always taught me, he said "mikey, never force anything, just get a bigger hammer"

Well, I have never ordered pizza with zinc fumes on it at the pizzeria, so I figured I wouldn't offer it on my menu either.

Harbor freight has a pneumatic hammer with the attachments. My brother, who is the "toolman", just happened to have one in stock. Go figure. He has everything. AND, it has never been used!!! Perfect for removing that big ass piece of galvanized angle iron without destroying my baby.

I hooked it up to my air compressor and within minutes, I have a new hole that is unsupported.
42" build in Virginia-get-big-freaking-hammer.jpg

What do I do now, I need some serious help.......please?
42" build in Virginia-no-support.jpg

I'm out there, and I'm loving it! (that's a Seinfeld tv show reference to going camando for those that don't know )
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  #36  
Old 03-31-2013, 02:41 PM
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Default Re: 42" build in Virginia

You probably need to build an arch to support the opening, also, your little reveal pieces will just fall off over time like they have now.
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  #37  
Old 03-31-2013, 03:10 PM
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Default Re: 42" build in Virginia

I took a pic of a cut out for the arch, with a height of 12.5". Can I build an arch that is that thin at the top, or do I need to make the opening smaller? What is the thinnist keystone I can have at the center of the arch?

42" build in Virginia-what-do-opening.jpg
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  #38  
Old 03-31-2013, 04:20 PM
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Default Re: 42" build in Virginia

You could always cast the arch.
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  #39  
Old 03-31-2013, 04:54 PM
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Default Re: 42" build in Virginia

Casting would be a good idea, but you should be o.k. if you go with firebrick. Don't forget to cut your form a little less than the total height of your finished arch, then use wedges to raise up the form. When you are done with the arch,pull the wedges out, the form drops, and you have an arch.
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  #40  
Old 03-31-2013, 05:47 PM
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Default Re: 42" build in Virginia

You could try something like what I did with my firewood storage area. I built an axed arch as a decorative finish that had to fit into a square opening, and was surprised by how sturdy it was, even using voissoirs (love these brickie terms!)
42" build in Virginia-wp_000117.jpg42" build in Virginia-wp_000118.jpg42" build in Virginia-wp_000119.jpg
You could do the same with the bricks on their long side. Cut to fit the square shape from the back ~2-3 inches of each brick to fit into your oven opening, but have the strong part of the arch built with the rest.

kind of convoluted, I hope it makes sense.
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Last edited by deejayoh; 03-31-2013 at 05:52 PM.
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