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Post by pete123 on May 11, 2012 19:38:58 GMT
This is the base with the shuttering off. I'm very pleased with it overall. Attachments:
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Post by pete123 on May 11, 2012 20:04:17 GMT
Not quite so impressive is the underside. I'm fairly happy with it though. I can't see it falling down any time soon. The picture shows the piece of rock I rested the metalwork on. I did put a small taper on them to stop them falling out. I've cut off the black damp course because it was just there to stop any cement falling through (I don't think any would have done.) For info Chipboard wasn't a very good choice for the shuttering but it was cheap & I got away with it. Make sure the wood on the side is properly supported if anyone is thinking of copying. I cracked a couple of bricks from the weight of the concrete on the pallet underneath. Most important lesson is to make sure the concrete is tamped down properly. I thought I'd done a good job but obviously not good enough. I can get my little finger in some of the underside gaps. Ideally they should be filled with something. How hard would it be to fill the gaps (skim?) with cement? - bearing in mind they are effectively on the ceiling. I might give it a try but I struggle to butter the end of a brick so I can't see it working. Some of the gaps might just go up to the bottom of the mesh? I suspect this is bad because the air will corrode them potentially. I'm not overly worried though. Attachments:
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Post by pete123 on May 11, 2012 20:11:05 GMT
The height is a bit more than I wanted. For that reason I've abandoned plans to use Celcon / Thermolite blocks. I've ordered Calsi board (50mm) which I will lay on the slab and put the fire bricks on top.
By ditching the blocks it will keep the height down a bit.
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Post by pete123 on May 12, 2012 20:32:36 GMT
Seeing how big it will be. The Calsi board will cover it up soon. Attachments:
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Post by pete123 on May 12, 2012 20:40:36 GMT
Playing with some house bricks trying out layouts. Attachments:
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Post by pete123 on May 13, 2012 18:23:48 GMT
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Post by pete123 on May 16, 2012 19:49:23 GMT
Kilnlinings delivery has arrived on time and nicely packed. Attachments:
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Post by pete123 on May 16, 2012 19:51:35 GMT
The fire bricks are pristine with some good edges on them. It seems a shame to chop them up. Attachments:
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Post by pete123 on May 16, 2012 20:04:28 GMT
This is a piece of the calsi board. It's very light. Easy to dig a thumb nail into it but at the same time it's quite solid. As per Liam's tip on page 2 I'll be wrapping it in some heavy duty aluminium foil to keep any moisture out. I also bought a couple of walkers space / hyperthermia blankets from Decathlon & for good measure I'm going to wrap those around as well. I'm very happy with with my Kilnlinings purchase. Thank you. Attachments:
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Post by pete123 on May 17, 2012 19:47:18 GMT
Measuring up the fire bricks for the floor. The Calsi has got to go underneath yet. Attachments:
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Post by pete123 on May 17, 2012 19:54:59 GMT
A potential layout using the Fire brick - which are bigger than house bricks. The gap is 18" but I'm minded to reduce the width by up to an inch? I've got to cut the Cali which I can't do until I've got a definite plan for the landing area & chimney. Attachments:
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Post by cannyfradock on May 17, 2012 20:35:19 GMT
Pete
I've yet to find an exact calculation for the width of the opening compared to the width or diameter of the oven. Mine is 16" opening of a 36" oven.....which works out to be about 47% of the diameter.....it is wide enough for most things, but another 2 inches would be better.....not sure how wide is the max width before losing heat?
Terry
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Post by pete123 on May 17, 2012 20:47:00 GMT
Many thanks. I think 18" it is then. The FB plans show 19" but it seems fairly wide. So 18" is a happy medium & will give me an extra inch to climb inside & point it up.
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Post by pete123 on May 19, 2012 21:58:45 GMT
One last move around of the bricks. Attachments:
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Post by pete123 on May 19, 2012 22:03:11 GMT
When I moved the bricks away there was a bit of a damp patch. I think this is because the concrete slab is still losing moisture? But it might also be some damp in the bricks? Any way it's nothing yo worry about. Attachments:
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