Coffee can wood-gasifier stove
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Uploader Comments (Cathlapootl)
Top Comments
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I know you disagree, but the reason for having intake holes on the lower part of the outer can is for increased airflow from convective currents.
The reason you're only making charcoal and not burning all the way to ash is because the pyrolysis reaction isn't getting enough oxygen to convert the charcoal to woodgas.
Technically what you've got is a wood distiller, not a woodgas stove. :)
3 years ago 7
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I've made one about two years ago. You definitely need holes at the bottom of the big Coffee can. About 10 at 2" apart. Works very well.
2 years ago 2
All Comments (28)
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Thanks for the vid. Why not at least give some written instructions / diagrams?
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With intakeholes on the top, much of the CO and CO2 from the burning fire will be sucked back in thru the intake, and too little oxygen will get to the fire, hence the smoke when you put the pot on its top.
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Or a similar size can on top with a gas wick?
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Cool. I see you are using the downdraft, but when you put the water on to boil, it limits the air. Maybe if you had bigger/more holes? Thanks for your efforts. I learn a lot by watching what you all do here with your experiments. Very cool.
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its just a fire, how is this a gasafier?
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do you have a fan
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let me guess, when you put the pot on top it starts smoking again?
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Down draft gasifier?
legox50 1 year ago
YES! exactly. :bow: what couldn't i have said that? lol thnx for commenting. :)
Cathlapootl 1 year ago
How have you attached the lid to the burner box, I'm interested to make one to take on the road.
ntrpe 2 years ago
it's held in place by gravity. :)
Cathlapootl 2 years ago
what did you use to cut the hole in the large can lid?
JAROSLAVAGINA 2 years ago
cut the big hole & tabs with tin snips after drilling a couple starter holes and then bent back the tabs with pliers.
Cathlapootl 2 years ago