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Post by bookemdanno on Jun 28, 2013 15:31:30 GMT
Wow, that's a question!
All ovens are unique, and only you will know how you get on with that, i'm afraid.
You'll get better results, but there'll be more water to expell from the insulated layer too.
A more Cob oven experienced reply'er is needed really.
Keep persevering!
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Post by swatson on Jun 28, 2013 15:49:40 GMT
Just need to wait for weather to clear again and I can get the insulation layer on, I am also going to put on a bit of clay piping for a chimney.
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nixie
WFO Team Player
Posts: 144
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Post by nixie on Jun 28, 2013 15:58:03 GMT
I'm seriously thinking of using a loose fill insulation layer in mine to avoid having to dry out a wet insulation layer.
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Post by swatson on Jun 28, 2013 17:24:22 GMT
How would you go about that? Would it be along the lines of cavity wall insulation? 2domes of clay with insulation in between could be difficult topping it off!
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nixie
WFO Team Player
Posts: 144
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Post by nixie on Jul 1, 2013 10:26:45 GMT
Was thinking of maybe making an outer dome from chicken wire and putting some kind of finishing layer one this. I'd leave a hole at the top to fill the space with and then cover this once the space was full.
Or I might just buy some super wool insulation blanket!
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Post by swatson on Jul 8, 2013 14:58:39 GMT
At last good weather has arrived so have an opportunity to progress the build, I purchased a piece of clay piping for the chimney and a large bag of woodchipings for the insulation layer.
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Post by swatson on Jul 8, 2013 15:04:57 GMT
For the chimney a 'Hepworth Supersleve Housedrain Socket' from keyline at £12.43. Attachments:
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Post by swatson on Jul 8, 2013 15:15:32 GMT
And for the insulation a 'Large' bag of woodchipings' from Pets at home for £9.50. Attachments:
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Post by cannyfradock on Jul 8, 2013 20:01:35 GMT
Swatson
I do like your chimney find from Keyline. I'm looking for something similar on my Pompeii build.....I must give my Cardiff "Keyline" branch a visit.
Thanks for the tips....
Terry
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Post by swatson on Jul 8, 2013 21:31:07 GMT
Thanks Terry,
It's only 4" diameter but I'm sure it will be sufficient for my small oven. Had a bit of a disaster when I tried to install it, the keystones of my arch that were slightly out of line came loose so I had to remove them and the recently installed chimney, I have now had to refit them tonight and will wait till tomorrow to refit the chimney!
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Post by swatson on Jul 9, 2013 14:10:50 GMT
As mentioned previous I refitted the two top bricks of the arch that had loosened when I first tried to install the chimney. The mud mortar has dried out overnight to a pretty solid state. So on with the chimney! Attachments:
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Post by swatson on Jul 9, 2013 14:18:22 GMT
I built up the area surrounding the hole between the dome and the arch till it was level, I then placed the chimney ontop. I used a slightly drier mud mix for this as I wanted a firmer surface to bed the chimney into that wouldnt subside. So far so good! If I can I will start applying the insulation layer tonight, heat permitting. Attachments:
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Post by swatson on Jul 10, 2013 8:51:18 GMT
Insulation layer complete! Attachments:
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nixie
WFO Team Player
Posts: 144
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Post by nixie on Jul 10, 2013 10:21:31 GMT
Looking good, must get the insulation in mine. How much of that bag of wood chippings did you use and how much clay to hold it together?
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Post by swatson on Jul 10, 2013 10:58:44 GMT
All in it was about 3 standard builders buckets of clay and only about 30 to 40% max of the woodchip. The small bag would easily have been enough! Attachments:
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