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Post by alanloy on Apr 9, 2015 23:14:20 GMT -8
I'm in the process of building my 1st rocket stove. I want to take it camping so size and strength are important. Ideally I wanted to be used to cook and as a heater.
A friend has welded a 4 inch, 100mm square tube into an L its 12 x 16, 300mm x 400mm (long side) and 8 x 12 200mm x 300mm (short side)
As yet I haven't insulated it and I was wondering if I can get away with just insulating the corner of the L where the combustion takes place, thus leaving the rest of the riser to radiate heat. I realise this will be less efficient but I am hoping I will still get high combustion temperatures.
After reading some posts I was concerned that my riser is to tall, 1.5 times the diameter was suggested mines 3 times.
Thoughts??
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Post by jimbe1969 on Jul 11, 2015 3:50:11 GMT -8
Would love to see an answer to this, myself... You ever get the thing working?
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Post by satamax on Jul 11, 2015 14:23:05 GMT -8
Metal is doomed!
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Post by alanloy on Jul 11, 2015 14:23:09 GMT -8
Yes it is built and working. I have enclosed the horizontal tube and about 50 mm 2 inches of the vertical in a box filled with perlite. This has increased the temperature a lot (sorry no measurements) and it burns better.
Next options are to insulate more of the vertical tube, better for cooking worse for heating or to use an inverted can as a bell similar to that used in rocket mass heaters. The idea is to heat this can up so it radiates heat, any thoughts on whether this will work??
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Post by alanloy on Jul 11, 2015 14:25:16 GMT -8
Metal is doomed! I don't think I'm getting temperatures high enough for spalling.
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Post by satamax on Jul 11, 2015 21:38:01 GMT -8
Time will tell!
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Post by alanloy on Jan 24, 2016 23:54:46 GMT -8
So far so good. I have recently added a knock off Weber kettle to the top. Gets to 400 F. first cook run tomorrow (Australia Day )
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