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Post by smarty on Feb 17, 2014 11:25:46 GMT -8
Hello everyone. Can someone direct me to any info on double skin bells and the idea of putting insulation in between? I am planning on doing a double skin bell and was just going to have an air gap between the two skins. Is it a good idea to put insulation between and if so should it be on the first bell or the second one as well. The inside of the first bell usually gets up to around 580C and the second is usually about half that, or less.
Any pointers gratefully received.
Martin.
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Post by satamax on Feb 17, 2014 15:06:37 GMT -8
Best site about bells. www.stove.ru/index.php?lng=1&rs=16And we were discussing the same subject with Peter once, i emited the idea that, for the expansion joint, one could use wire wool instead of insulation or air gap, so heat is transmited a little better.
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Post by Robert on Feb 18, 2014 0:48:10 GMT -8
Hey Smarty i was recently bulding a double bell stove with Joris Pouls from Belgium. He was using ceramic paper as an insulation and expansion gasket beetwen first skin and the second... main bell was double and the second bell was single.
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Post by smarty on Feb 23, 2014 0:50:44 GMT -8
Tanks for the response guys. Yes I guess the air gap would insulate somewhat. This would have the effect of pushing more heat into the second bell and also if this bell was encased in the same double skin the air gap would also become evenly heated in horizontal section thus spreading heat from the first bell to the second bell. Not sure if this would have a knock on effect on the bench temperature and possibly also raise the flue temperature as well. Guess I'll have to see when I install it. The wire wool might help to transfer heat out into the second skin, the ceramic paper would eliminate the air gap but have a slight insulating effect as well I guess? More food for thought!
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Post by fiedia on Jan 5, 2020 1:30:26 GMT -8
Hello smarty, I am wondering if you have done some new trials on this topic since ... 2014. I built a double skin brick bell with a 10mm air gap. The temperature drop between the two facing surfaces is around 30 to 50°C. I would like to reduce it in order to improve the bell efficiency. Have you found any material for this purpose ?
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