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Old 07-27-2011, 12:51 PM
Laborer
 
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Location: 12 minutes from Snowbird UT
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Default Continued Design Ideas

Thanks for all who replied to my thread in Introductions. In that thread I mentioned I didn't want to make too many cuts because I will be using my neighbor's saw. But that has all changed. He is moving and I can't afford to rent or buy one so I don't want to make any cuts. So that rules out any kind of dome.

Here's what I'm thinking of building. It requires only one cut and I can probably make it with my table saw and an old blade.



One thing I don't like about this is the size of the opening. I recall someone mentioning in a thread that you can cut fire bricks without using water. If this is true and I can buy a suitable blade for my table saw I might consider this design instead. Any thoughts about the advantages of one over the other?

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Old 07-27-2011, 02:20 PM
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Default Re: Continued Design Ideas

End walls are better off being inside the arch.
You can soak the brick in water first.
You can use an angle grinder fitted with a diamond blade.
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Old 07-27-2011, 03:59 PM
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Default Re: Continued Design Ideas

Where's the vent? Option 2 looks like it would be better for oven management. There may be a reason that the AS ovens are not built this way.
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Old 07-27-2011, 04:37 PM
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Default Re: Continued Design Ideas

Quote:
Originally Posted by Les View Post
There may be a reason that the AS ovens are not built this way.
The lateral thrust from the dome will push the entry over.
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Old 07-27-2011, 04:40 PM
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Default Re: Continued Design Ideas

A poster ona previous thread reported he built an oven that looked like Design #2. He warned that because the oven was wider than it was deep it did not draw worth a damn and was worthless. Maybe this is why AS ovens have the footprint they do.
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Old 07-27-2011, 04:43 PM
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Default Re: Continued Design Ideas

Which one are you thinking of building? If you don't want to cut bricks, I can't understand why you'd look at the second one.

Have you considered that you can 'break' the bricks? A well placed blow with a roofing type hammer.. or they do have brick vises.
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Old 07-27-2011, 04:53 PM
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Default Re: Continued Design Ideas

Spring for a saw....they don't cost that much....
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Old 07-27-2011, 05:02 PM
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Default Re: Continued Design Ideas

Number one, and you still need to either break or cut halves as you want the brick of the arch to be running bond, not stack bond.

As for the ends being either inside or outside, the best is 1/2 in and 1/2 out, that is, notched. This provides the best seal and most support.

You can cut dry and use your table saw, but you will be producing a plume of mildly carcinogenic dust and killing your saw. Use a fan to blow it away from you while you cut.
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Old 07-27-2011, 05:33 PM
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Default Re: Continued Design Ideas

You could always buy a used saw, then sell it on Craigslist after getting most, if not all of your money back.
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Old 07-28-2011, 08:30 AM
Laborer
 
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Default Re: Continued Design Ideas

Once again everyone has given me great advice. Thanks.

It seems the consensus is that I need to get a saw. OK. I'll do it. It's only money after all and what's that compared to delicious bread and pizza hot off the hearth?

So if I get a saw what's stopping me from building the dome oven vs. the vault (except that I have no masonry skills whatsoever)? Seems most people on this site are passionate about the dome but still some have built the vault.

So here's the million dollar question: Is the dome's performance worth the (apparent) extra effort it takes to built it (just looking at the construction photos makes me tired) or will the vault and it's simpler construction perform just as well? Again, it's just my wife and I baking the occasional loaf or flipping an occasional pizza. The oven is meant mostly as a failsafe against a long term power outage.

Thank for sharing your thoughts.

Craig

PS, these are the bricks I have. 190 of the small ones (alumina 60%), 30 of the larger ones and 2 half arches (alumina 45%).


Last edited by clofgreen; 07-28-2011 at 08:42 AM.
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