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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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Posted: Fri Nov 13, 15 11:50 am Post subject: |
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Honestly, mine will make a couple of decent size pizzas at a time, taking around 5-6 minutes each. Takes a couple of hours to get to temperature.
If I wanted to cook 50, I'd wonder if 2 decent size ones might be the way forward, rather than a huge one, otherwise, when it's just the 5 of you, you'll use a small forest to get it running, and have to wait 5 hours.
I see no issue building on the gabions, though.
Crucial issue, I'm led to believe is the ratio of the door size to the main oven, to allow sufficient air flow v heat loss. I built mine, honestly, around the size of door I was able to buy on eBay. |
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sean Downsizer Moderator
Joined: 28 Oct 2004 Posts: 42219 Location: North Devon
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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Posted: Fri Nov 13, 15 12:47 pm Post subject: |
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My door is cast iron, from an old oven/stove type thing.
I have a concrete base, with steel to strengthen it, but I'm spanning brick pillars, on top of gabions, I wouldn't bother with the steel. On top of that is a layer of fire bricks laid on mortar, but just butted up, no mortar between them to act as the base of the oven. Any slight seams or ridges were ground out to make it flat as possible. These hold heat and make sure you get a dry, crispy base. First couple of bakes have grit/dust in them, but that's fine.
The dome is made from more fire bricks, about 4 inches thick, held with normal mortar. I cut with an angle grinder, and filled gaps with mortar; it's not pretty.
Then, an inch of kiln blanket was placed over the whole affair, and a couple of inches of regular concrete mixed with vermiculite to provide further insulation, and a final skim coat of concrete to attempt to weather proof it.
Chimney is a couple of lengths of waste pipe, because I had it kicking about.
I would suggest you use fire cement, not regular, as mine already has some cracks. I don't think it'll matter much, but I'd prefer it didn't.
All my 'fire bricks' are actually blocks from night storage heaters, because they're designed to absorb heat, and emit it over a long period. All culled from eBay for a few pence each. Whatever you use, it's going to be about 5 times heavier than you expect. |
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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dpack
Joined: 02 Jul 2005 Posts: 46207 Location: yes
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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tahir
Joined: 28 Oct 2004 Posts: 45669 Location: Essex
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