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Post by marthale on Mar 7, 2019 9:14:43 GMT -8
www.youtube.com/watch?v=Ss1mVjy2O_E&t=26sI have much bamboo where I live, one of the problems I had with rocket stoves is they build up charcoal and ash and I am unable to add more material till I dumped the stove. With this design I can just keep feeding the stove. I learned much about making concrete forms with this as they need to be braced very well to hold up to the weight of the air crete. I used ceramic fiber blanket for the core, I am looking ahead to test another mix for the core. I believe that I could use this to make low grade charcoal for biochar or my wood gas generator, but the 1 foot flame really impressed me. Mart
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Post by DCish on Mar 8, 2019 8:01:04 GMT -8
Fun!
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Post by marthale on Mar 8, 2019 15:32:07 GMT -8
Hey thanks I had alot of fun building it.
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Post by gadget on Mar 8, 2019 16:07:26 GMT -8
Interesting fuel source. Perfect size for a RMH.
Are you casting your aircrete around the blanket? I'm guessing you place the blanket in after its somewhat cured. Does the aircrete get warm much?
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Post by ronyon on Mar 8, 2019 20:53:03 GMT -8
Mart! Welcome over to the boards! Glad to see you made it!
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Post by marthale on Mar 8, 2019 20:59:47 GMT -8
Interesting fuel source. Perfect size for a RMH. Are you casting your aircrete around the blanket? I'm guessing you place the blanket in after its somewhat cured. Does the aircrete get warm much? I have done it both ways, it makes more sense to put it in after you cast it from my experience. I am looking to get away from the blanket as I am afraid of the micro fibers it may be giving off, I have tried coating with sodium silicate. I might try perhaps coating with clay slip to seal in the fibers. I have had my hand on the blanket with the fire going, it really insulates very well, to illustrate the top part of the chimney is nothing more than aluminum flashing holding the blanket in place. It has not warped at all since I have fired it.
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Post by marthale on Mar 8, 2019 21:00:39 GMT -8
Mart! Welcome over to the boards! Glad to see you made it! Thanks for the invite lots of people here that dream with fire ;-)
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Post by DCish on Mar 9, 2019 12:45:34 GMT -8
Hey, and as for bamboo, there is a "weed patch" of it in a park nearby that I harvest from. I hang 2-3 20' poles to dry for a year, use a machete clamped to a stand to split them length-wise, then use a circular saw to cut bundles of the strips quickly to 6" lengths. This gives me fantastic kindling that lights instantly from a half-sheet of newspaper, and gets my half-inch and up stuff going quickly. Lots of heat in that bamboo!
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Post by marthale on Mar 9, 2019 18:58:51 GMT -8
Hey, and as for bamboo, there is a "weed patch" of it in a park nearby that I harvest from. I hang 2-3 20' poles to dry for a year, use a machete clamped to a stand to split them length-wise, then use a circular saw to cut bundles of the strips quickly to 6" lengths. This gives me fantastic kindling that lights instantly from a half-sheet of newspaper, and gets my half-inch and up stuff going quickly. Lots of heat in that bamboo! Just be sure to not burn it whole :-) I am told that when green those sections can go off sounding like a bomb :-) I have found the large sheets that that bamboo drops from where junctions form from the bamboo start fires even better than paper there seems to be some sort of oil in them. I collect them and use them to start fires with great success. I use a chop saw as well for my smaller stove They do make great fire starters. A friend of mine uses them to make wood gas to run his generator.
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Post by DCish on Mar 10, 2019 19:56:36 GMT -8
Thanks for the warning, I've heard others mention the same, though I've never had the gumption to experiment for myself . I've wondered on occasion how large a stand of bamboo one would need to heat one's house for a year. The stuff sure does grow easily.
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Post by esbjornaneer on Mar 16, 2019 15:07:01 GMT -8
I think Peter talks of about 7kg wood for a burn in a 150mm/6" BBR per burn. How many burns/day & how many days/year? What is the dry weight of bamboo/m^2? There you are.
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