#1  
Old 07-06-2011, 07:31 AM
Peasant
 
Join Date: Jun 2011
Location: NE-PA
Posts: 35
Default sizing help needed

Hi all, I missed a page when I downloaded the instructions/guide. I poured a reinforced and thermal pad that is 49'' wide by 36 1/2'' deep.
I can get (by adding rebar and welding up a frame, and adding on to the pad(i left myself a lip around the pad) 10 more inches across and 9'' forward.
giveing me a grand total of 45 1/2'' deep by 59'' across.
My question(s) is
1. what size oven can i now build with the new dimensions.
2. is there a different type/shape oven that would work on my old pad?
3. any suggestions would be appreciated.
Thank you all in advance for all your help.
(sorry for all the smilies my 2 yo was "helping" me type)
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  #2  
Old 07-06-2011, 09:22 AM
Faith In Virginia's Avatar
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Join Date: Oct 2010
Location: Virginia
Posts: 720
Default Re: sizing help needed

Is this what your missing? I may be wrong but it sounds like your small on your dimensions. With what you have stated I think the oven would be too small for any great use. But that is just from what you have stated.
Hope this helps
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sizing help needed-untitled.jpg  
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  #3  
Old 07-06-2011, 10:13 AM
Journeyman
 
Join Date: Aug 2010
Location: Glendale, Arizona
Posts: 397
Default Re: sizing help needed

Hi Forgeblast,

Can you post a few photos of what you've done so far? That will help us to come up with a solution to your challenges.

Cheers,
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  #4  
Old 07-06-2011, 11:32 AM
Peasant
 
Join Date: Jun 2011
Location: NE-PA
Posts: 35
Default Re: sizing help needed

Here are the pictures.
Picture one shows the oven base, with the reinforced and thermal slab.


Picture two shows the overall placement


one more for good luck

Last edited by Forgeblast; 07-06-2011 at 11:35 AM.
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  #5  
Old 07-06-2011, 12:29 PM
Peasant
 
Join Date: Jun 2011
Location: NE-PA
Posts: 35
Default Re: sizing help needed

STOVEMASTER - Semi-pre-cast brick ovens
wondering if something like this would fit. it seems to be similar in size, If I take the oven forward 9'' and then add on where the opening and chimney would be the oven would be around 45 x 45 and give me about 2025 square inches of cooking space.
Time to mess around with cardboard.
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Old 07-06-2011, 02:28 PM
Journeyman
 
Join Date: Aug 2010
Location: Glendale, Arizona
Posts: 397
Default Re: sizing help needed

Hi Forgeblast,

Thanks, the photos help to put things into perspective.

I think you have some major remodeling to do. It may be practical to consider deconstructing the hearth and starting over with the appropriate size while it is still early in the game. Yes, it's a pain ita, but worth the effort. It appears that you've done a nice job on the existing hearth slab so I'm not worried about how a larger rendition will turn out.

In regard to the Stovemaster oven. You are only seeing the finished dome, not the insulation which will add to the width and depth by possibly four inches on each side. Without seeing the completed oven I would venture to say he will use up all the space around it with insulation and enclosure.

My 36" Pompeii oven needed every bit of the 51" wide hearth slab. The external width of a 36" Pompeii oven averages roughly 44" before the addition of insulation. Three or four inches of insulation on each side will bring it up to roughly 52" wide.

I recommend that you re-do the calculation for the 2025 sq in cooking space. I'm thinking you can build a 31" diameter oven (internal dimensions) in the space available if the top slab is 45" x 59". But, it would be oriented all wrong. Where would you place the entrance and chimney? Take another look at the free Pompeii oven plans and see how the slab and oven are oriented. A fresh start will give you the opportunity to approach the build with fewer challenges.

Cheers,
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  #7  
Old 07-06-2011, 04:14 PM
horrocks007's Avatar
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Location: Roosevelt, NJ
Posts: 96
Default Re: sizing help needed

The Giardino 60 will fit for sure.
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  #8  
Old 07-07-2011, 07:58 AM
Peasant
 
Join Date: Jun 2011
Location: NE-PA
Posts: 35
Default Re: sizing help needed

I wish I had the $$ for a precast. Just not happening this year, all on pay freezes.
Mick, do you know off hand the width and height of a barrel vault opening?
or a formula so that i can plan it out.

Last edited by Forgeblast; 07-07-2011 at 10:35 AM.
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Old 07-08-2011, 04:05 AM
Peasant
 
Join Date: Jun 2011
Location: NE-PA
Posts: 35
Default Re: sizing help needed

Ty for the measurement work.
I was worried about the chunck of metal there also. I was planning on not having it there. I wont be doing two layers onthe floor because I have an insulated layer down already and will just be placing one layer of firebrick over it.
I was messing around with some cardboard templates and I might have found the perfect form.
drum rolll......a blue plastic barrel (the one that people use for rainwater collection) cut in half and in half again. (the reason is the lip that is on the top and bottom, this way you can keep the lip on the outside of where you are working.) I guess its time to just start doing some mock ups now. I really apprecaite the into on the opening size, if it does have a 10 inch with a 17'' finished height, what would the width be 16''?
When I did caluclated the 63% on the height of my mockup it was ~11'' so real close on.
MHA News - 2007 Meeting at Wildacres this also shows a barrel vault being constructed.

Last edited by Forgeblast; 07-08-2011 at 04:18 AM.
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  #10  
Old 07-08-2011, 04:12 AM
horrocks007's Avatar
Laborer
 
Join Date: Oct 2009
Location: Roosevelt, NJ
Posts: 96
Default Re: sizing help needed

You also might want to check out roundboyovens.

Or.... What if you build a concrete hearth pad that is larger and sit it on top of your existing stand.

Another thought is to cut your fire brick to 3.5 inches instead of 4.5 and use fg insulating blanket with a 24 inch cooking floor. Might be better than a barrel vault.

Last edited by horrocks007; 07-08-2011 at 04:19 AM.
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