This Could Take A While.... (Yet Another Wood-fired Oven Thread...) - Page 2 - Masonry Picture Post - Contractor Talk

This Could Take A While.... (Yet Another Wood-fired Oven Thread...)

 
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Old 08-09-2012, 04:48 PM   #21
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Nice, finally someone bonded the arch bricks together. Every time I've seen a barrel vault done people have done single arches in series so they could reuse the centre. Can't stand it.
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Old 08-09-2012, 08:41 PM   #22
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


looks really good. these must be good clients.

i was a helper on one of these when i was about 18. the innards were precast from italy, base and 4 dome sections. vermiculate insulation and brick on the outside.

i'd like to try to precast one out of that refractory cement but it looks tough to work with. a glass blower showed me how to mix the cement blocks that went into his kilns, it was insanely dry and i doubt i could get it to flow in a mold.
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Old 08-09-2012, 09:07 PM   #23
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


To me, the difference between a cast oven and a brick oven are the same as for a concrete driveway and a paver driveway: Both will crack (i.e. move), but with the paver driveway all the cracks are pre-engineered and make no difference in appearance or performance.

Plus the material is expensive and requires an expensive and time consuming mold. Just say No! to cast refractory ovens.
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Old 08-14-2012, 04:23 AM   #24
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


It was a rainy weekend...
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Old 08-14-2012, 12:59 PM   #25
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


bytor,
Between you and C.J. I'm a stones throw from digging a hole. I like your approach and the detail, I'll try and pony up and do all the stuff the BIG T. has shared with all of us and make it pretty and workable. I'm really slow to get going on anything at my own hacienda simply 'cause I wan't it better than what's out there, at least in a four state radius. It's just me and Denise has been chiding me for years about it.

D.
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Old 08-14-2012, 06:49 PM   #26
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Bytor, how expensive is that foam glass, that looks to be the ideal material.
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Old 08-15-2012, 05:41 PM   #27
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


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Originally Posted by Tscarborough View Post
Bytor, how expensive is that foam glass, that looks to be the ideal material.
Tscarborough... I paid 5.25/sq. ft for the 3" material (It is also available in 2 and 4"). I wonder if it would be less expensive for you as it is made in the U.S.... It comes in 18" by 24" blocks and cuts like butter with a handsaw.

http://www.glasscellisofab.com/sheet...&%20Blocks.pdf
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Old 08-21-2012, 03:52 AM   #28
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Apparently I've had these firebrick kicking around in the yard for a while... looking a little 'tumbled' judging by the joints...
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Old 08-21-2012, 03:53 AM   #29
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


The entry...
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Old 08-21-2012, 03:56 AM   #30
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


I think I might have created a little too much 'heat sucking' mass around the entry. I plan on cutting a fair amount away and replacing with insulation.
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Old 08-21-2012, 03:58 AM   #31
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Say there friendly moderator... is it possible to move this thread to the masonry picture forum?
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Old 08-21-2012, 07:08 AM   #32
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Looks great, so clean.
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Old 08-21-2012, 04:40 PM   #33
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Did you pour between the opening and the oven itself as well? I've never liked the idea of cutting brick to fit by guess and by gosh. Using refractory seems like a really good idea
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Old 08-21-2012, 10:35 PM   #34
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


You will be cooking in that before you know it!
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Old 08-22-2012, 04:57 AM   #35
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


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Did you pour between the opening and the oven itself as well? I've never liked the idea of cutting brick to fit by guess and by gosh. Using refractory seems like a really good idea
Yes I did end up pouring right over to the oven.

I had a bunch of Whitacre-Greer firebrick which I used for the oven walls (4.5" by 9") so I had built the side walls to 36" (4 full bricks). I later picked up my arch bricks which are made by Alsey and are in fact only 8 3/4-7/8" long. As a consequence, my vault ended up roughly 3/4" short of reaching the front wall of the oven chamber. I had toyed around with cutting arch bricks to make up the extra length while still keeping a good bond and just couldn't make it work with the number of bricks I had.

So...

I got to this stage and started creating the vent area;
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Old 08-22-2012, 05:02 AM   #36
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


In this side view you can see the difference in the vault vs. the front wall of the oven.

I played around with trying to figure out a way to bridge the gap with firebrick, but wasn't satisfied that the end result would be very pleasing. In the end, I opted to sculpt a piece of SM to form a plug from the inside and fill the gap with refractory.
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Old 08-22-2012, 05:05 AM   #37
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


I missed a couple of photos in the sequence, but here you can see the results of the pour from inside and out;
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Old 08-22-2012, 05:13 AM   #38
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


I added a few brick on top to narrow down to my flue size.

I was planning on an 8x8 flue. but may play around with that a little before I close things in. I could easily alter things to suit an 8 x 12 if it provides a better draw. A couple of the small kindling fires I've had have been a little iffy, with some smoke rolling out the front. Of course they've been none too hot and there was always some pretty 'swirly' wind going on...
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Old 09-18-2012, 10:28 AM   #39
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


Time flies...

I covered the dome in a double layer of heavy duty foil to provide a bond break before adding a 1.5" layer of castable refractory to beef up the mass of the vault.

In the next pic you can see the refractory layer as well as the harness I had made to counteract the spread of the vault during firing.

I did end up increasing the flue to an 8 x 12... much better
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Old 09-18-2012, 10:33 AM   #40
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Re: This Could Take A While.... (Yet Another Wood-fired Oven Thread...)


I like this shot... shows the bare bones oven structure... foundation, cast arch, hearth insulation, vault, entry, harness, vent, etc. etc.

Looks 'Industrial'.
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