#21  
Old 06-23-2009, 01:10 PM
Peasant
 
Join Date: May 2009
Location: uk
Posts: 43
Default Re: UK 34" rounded square Oven Progress.

More good progress over the last couple of days, the brick chimney fronting is almost complete, and some of the terracotta quarry tile are down, and it is all looking good!

I did end up putting some steel reinforcing angle iron that runs right down into the concrete slb, this will definetly stop ay outward force of the entrance arch!

Ceramic blanket has been ordered and hopefully a stainless steel twin wall flue, will be won on ebay on the weekend.

then it is just a bit of rendering and painting!
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UK 34" rounded square Oven Progress.-wfo3.jpg   UK 34" rounded square Oven Progress.-wfo-2.jpg  
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  #22  
Old 07-24-2009, 07:34 AM
Peasant
 
Join Date: May 2009
Location: uk
Posts: 43
Default Re: UK 34" rounded square Oven Progress.

With the cracks in the FB dome sorted, I set about covering the dome with 2 layers of 1" ceramic blanket! When the guy in the builders merchants said, "careful with this stuff, it's nasty!" he was not wrong! I felt like I had been dragged through a field of stinging nettles, topless! Ouch!

Next, I covered it with chicken wire, then a scratch coat of render(I added some quick drying cement to the mix for the lower parts of the side, to avoid it slumping off!)

Hopefully tomorrow, I will do a much thicker top coat, as it sounds very thin and easter eggish!

Then early next week I have a 4 foot vitreous coated 8" flu to put on top, then job done!
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UK 34" rounded square Oven Progress.-stuff-021.jpg   UK 34" rounded square Oven Progress.-stuff-022.jpg   UK 34" rounded square Oven Progress.-stuff-023.jpg  
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  #23  
Old 07-24-2009, 02:52 PM
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Default Re: UK 34" rounded square Oven Progress.

Don't go crazy beefing up your render just quite yet: One inch of blanket is about half what's recommended. You may find you may need a few inches of vermiculite concrete before your final finish.

Good looking job, by the way.
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  #24  
Old 07-24-2009, 06:05 PM
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Location: Bolton England
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Default Re: UK 34" rounded square Oven Progress.

I agree with dmun, 2 inches of ceramic insulation isn't enough if you want the oven to hold it's heat for 24 hours or more. If you want to fire it up and cook pizzas etc there and then you shouldn't have a problem. If it's pizzas in the evening, bread the following morning and maybe a slow roasted joint for dinner you'll need much more insulation.

I've covered my dome with 5 layers of heavy duty aluminium foil, 2 inches of Insulfrax high density ceramic insulation then 4 inches of high performance mineral (Rocksilk) insulation. With an insulated aluminium box door containing 6 inches of vermiculite inside, the oven temperature after 24 hours, following a pizza session is as high as 190-200C (375-390F).

My advice is put 3 or 4 inches of vermiculite or perlite cement on there before your final render. It will make your oven more versatile.
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  #25  
Old 07-25-2009, 12:32 PM
Peasant
 
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Default Re: UK 34" rounded square Oven Progress.

Tonight was the big night, I fired the oven up nice and hot, I did do it fairly slowly, as it was the first time, it took 2 hours until we started to cook.
I reckon with a bigger fire rather then I used it would heat up lots qiucker.

So, here are some pic's of the first pizza cooking and the end product! I'm really pleased, it was a long slow road, and at times I got fed up and disheartened with the whole project, but after tonight, I am so pleased I saw it through!

Now the learning of cooking starts, first off, I will keep the fire over the centre of the oven to heat the floor up more, I keep the fire at the back tonight, second, prepare the pizza's on a marble surface or similar, as we made 3 on plates, and they stuck, but they still cooked once sorted!

Last off, I was not keen on the idea of another 2-3 inchs of inculation, but after 2 hours the oven dome was very hot, still able to touch it, but this does represent a massive loss of heat, so I will be further insulating the dome!

Wood fired Pizza ovens rule!!!
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UK 34" rounded square Oven Progress.-photo-0058.jpg   UK 34" rounded square Oven Progress.-photo-0059.jpg  
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  #26  
Old 07-26-2009, 01:41 AM
Serf
 
Join Date: Feb 2009
Location: Bolton England
Posts: 24
Default Re: UK 34" rounded square Oven Progress.

I know the feeling! That first pizza is the best ever and put's a big smile on your face!
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  #27  
Old 07-26-2009, 03:08 AM
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Default Re: UK 34" rounded square Oven Progress.

Looking good! A hint: if you push your fire to the side, instead of the back, you can see the edge of the pizza exposed to the fire, and quickly see how it's browning up.
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  #28  
Old 07-26-2009, 10:56 AM
Peasant
 
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Default Re: UK 34" rounded square Oven Progress.

thanks dmun and nev,

to the side sounds like a good ides, I realise that I now need to make a few more cooking tools and a door too!

the oven was still warm 24 hours later, and it rained for the most of last night, with some more good insulation, it will never cool down!
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  #29  
Old 07-26-2009, 11:07 AM
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Default Re: UK 34" rounded square Oven Progress.

I really like how you did your dome. It is a lot like some of the Le Panyol ovens with "orange wedge" sections: Le Panyol Model 99 | Masonry Heaters and Wood Fired Ovens - Maine Wood Heat Co.
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  #30  
Old 09-04-2009, 01:46 PM
Peasant
 
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Default Re: UK 34" rounded square Oven Progress.

I really need some help, I have done nothing for a few weeks now, the weather has been terrible or I have been at work on the nice days, so I have not even had time to use the oven let alone finish the dome! very disappointing!

However, I have next week of work and intend to get a full day in finishing the oven(more fearing winter than needing to finish it). So, my plan is to finish the insulation of the dome and the render finish. What I would like to do is create a render dome and then pour in dry vermiculit to insulate rather than use the compromising vermiculit conrete.

The issue is, how to create a render shell! chicken wire, obviously comes into the equation, but how to hold it 2-3 inches away from the dome. I was thinking maybe a cardboard shell that could be carefully burnt out. Or possibly a fibre glass shell with render on-top(but would heat damage it?) as I have a roll of galls fibre that is looking for a purpose.

OR does someone else have a suggestion that may work?
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