#1  
Old 03-05-2008, 08:34 AM
Serf
 
Join Date: Mar 2008
Location: Michigan
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Default Newbie List of Questions

Hello all,

I hope you will have the patience for a list of newbie questions. I have been working with making a decent pizza in a weber grill. (including bolting fire brick to the top of the lid) and I'm not happy with the results.

Therefore I'm contemplating turning it up a notch and have some fundamental questions.

1) Budget-how much should one expect to spend in building a brick oven themselves?

2) Is there a reason you shouldn't use charcoal in addiition to or instead of wood?

3) Mobility-We don't plan on living in this house for more than a few more years and I'm contemplating how one would make their brick oven somewhat mobile.

Is this even possible?

My naive plan would have a "table" constructed with legs out of 4x4s with inflatable tires, the table top would be made of concrete depending more on insulating concrete and less on heat mass. Likewise the dome would be less mass more insulating concrete. e.g. use split face refractive brick, backed by insulating concrete, or use some massing concrete in only key areas such as under the floor of the oven and on the top of the dome.

Thank you in advance for your thoughts.

Tysen
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Old 03-05-2008, 09:22 AM
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Default Re: Newbie List of Questions

Material costs are so variable that it's difficult to give you even a round figure on costs. Much of it depends on the finish of your oven. The material lists on the pompeii instructions is a good place to start.

Charcoal is expensive, and doesn't burn with the hot flame that firewood does.

Wood bases are strongly discouraged. Wood is flexible: Masonry is rigid. Bad combination, we fight cracking even with rigid masonry bases. You can make a structural steel base, and place your oven where riggers can get at it, or build a fully mobile oven on a substantial trailer.

The balance of solid refractory materials and the insulation surrounding it is important for cooking success. Anything much less than two inches of firebrick just isn't going to hold enough heat to cook successfully, particularly with retained heat cooking. The other problem with building a dome from splits is that you would have a lack of structural support for your dome: Insulating materials don't have much if any strength.

Good luck with your project.
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Old 03-05-2008, 03:38 PM
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Default Re: Newbie List of Questions

Thanks for the feed back.

It would appear that the brick alone is a $500 commitment.

I get your point on the issues around the flexible nature of the wood.

After I posted a quick calculation of 250 bricks at 8 pounds each suggests a weight of 2000 pounds. (thats more than my MG)

Crap.

Looks like its going to have to be a leave behind.
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Old 03-05-2008, 03:58 PM
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Default Re: Newbie List of Questions

It's true. Brick ovens are heavy. Maybe you get to build two this way. :-)

James
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Old 03-05-2008, 04:28 PM
Il Pizzaiolo
 
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Location: Tampa, FL
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Default Re: Newbie List of Questions

I stopped calculating my oven weight about 3/4s through construction....somewhere in the 4400-4500 lb range (all inclusive - foundation slab, block stand, support slab, dome). I'm guessing with the finish materials installed, I'm at about 5000 lbs. I don't think that I would move it or attempt to, even if I had built it to. A heavy duty trailer version seems to be the only viable option if you ever want portability.
RT
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Old 03-05-2008, 07:02 PM
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Default Re: Newbie List of Questions

Quote:
Originally Posted by james View Post
Maybe you get to build two this way. :-)
Here's my plan: I'm building the first one. If there is ever a need for a second, it'll be a kit from FornoBravo!
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Old 03-05-2008, 07:49 PM
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Default Re: Newbie List of Questions

If you are looking at a couple years max for the home, then to a more perminant location, do the serious oven at the next home.. For now, yes, get some bricks and build a temporary oven, much smaller than the perminant ones, bigger though than the one hour version. Look into the thread that talked about the one hour oven, and make it bigger. This way you won't have to invest a lot of time and money into a perminant one that you will miss so soon...
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Old 03-05-2008, 08:00 PM
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Default Re: Newbie List of Questions

Acoma has a great idea:

Quote:
For now, yes, get some bricks and build a temporary oven
Stack up a block base on patio block footings, put a slip plane on top, and cast your support slab on top. Then you can build your dome using the fireclay only mortar that Frances used:

http://www.fornobravo.com/forum/f8/p...pics-2610.html (Pompeii oven in Switzerland: pics)

When it comes time to move, the only thing you'll have to sacrifice is the concrete support slab, and if it's forklift accessable, you might even be able to take that.
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Old 03-05-2008, 08:02 PM
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Default Re: Newbie List of Questions

Oddly enough I have heard of the possibility of moving a brick oven...you would have to construct it with something to weaken the bond between the hearth slab and concrete block...would need a grad-all or forklift to lift it and a big flatbed truck to move it and reverse the process...most likely more costly than constructing another oven...and quite risky as it may crack anyway...think of what it will do for your property value...or at least the sellibiblty of it(is sellibility a word?)...anyway
Good luck!
Dutch
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Old 03-05-2008, 08:11 PM
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Default Re: Newbie List of Questions

Another option is an earthen/adobe oven. The material costs are negligible compared to a brick wfo. Clay, staw, water, a few fire bricks for the floor.
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