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Thread: Wood Gassifier Stoves

  1. #21
    Super Moderator crashdive123's Avatar
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    I don't think the gasses produced by burning wood are the same as those produced by wood under high temps that are not allowed to burn. Isn't the idea of wood gasification to produce a fuel (think propane) to power an internal combustion engine or a gas stove? Maybe I'm wrong - I haven't done it, and haven't studied it extensively. Looking forward to what you end up with. Either way, it's a cool looking set-up you've got.
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    Lone Wolf COWBOYSURVIVAL's Avatar
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    Another related link....

    http://www.woodgas.com/bookSTOVE.htm
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

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  3. #23
    Super Moderator crashdive123's Avatar
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    Gotcha. You were talking apples and I thought it was oranges. My bad.
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  4. #24
    Lone Wolf COWBOYSURVIVAL's Avatar
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    And here is a great PDF! Where was all of this before I started!

    http://journeytoforever.org/biofuel_...odgasStove.pdf
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

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  5. #25
    Lone Wolf COWBOYSURVIVAL's Avatar
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    Here is another good PDF that may help with biomass fuel selection.

    http://journeytoforever.org/biofuel_...TurboStove.pdf
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

    "How can you tell a story that has no end?" Doc Carlson

  6. #26
    Lone Wolf COWBOYSURVIVAL's Avatar
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    Quote Originally Posted by crashdive123 View Post
    Gotcha. You were talking apples and I thought it was oranges. My bad.
    I am not using a fan...take a look at the other links.
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

    "How can you tell a story that has no end?" Doc Carlson

  7. #27
    Super Moderator crashdive123's Avatar
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    I did. That's why I said apples/oranges. Basically you are making a stove that burns hotter and I was thinking (incorrectly) of a gas generator to power things. http://www.youtube.com/watch?v=F258s13UxfY
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  8. #28
    Lone Wolf COWBOYSURVIVAL's Avatar
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    Quote Originally Posted by crashdive123 View Post
    I did. That's why I said apples/oranges. Basically you are making a stove that burns hotter and I was thinking (incorrectly) of a gas generator to power things. http://www.youtube.com/watch?v=F258s13UxfY
    Right, it generates gases that are immediately burned and not stored. Benefits are a more efficient burn (less wood required) and when working correctly won't sute up pots. I have even read where they are used indoors. Getting the venting and gas nozzles perfect is key though. I am not there yet but am making it completely adjustable now. More to come!
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

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  9. #29
    Administrator Rick's Avatar
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    I was thinking the same as Crash. What's the difference between a hobo stove and a gasifier stove? It still hasn't clicked for me. I see the 2 stage air intake but I still don't get it.
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  10. #30
    Lone Wolf COWBOYSURVIVAL's Avatar
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    Quote Originally Posted by Rick View Post
    I was thinking the same as Crash. What's the difference between a hobo stove and a gasifier stove? It still hasn't clicked for me. I see the 2 stage air intake but I still don't get it.
    As I understand a hobo stove it is just fire in a can with air coming in from the bottom...There is no inner chamber. This uses convection (heat) to pull gasses from the base of the fire and reintroduces the gas to the flame front creating a gas fire at the top of the stove. Working correctly the gas flames will even be blue. It really has to all be perfect though...that is why I am making everything adjustable as we speak.
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

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  11. #31
    Administrator Rick's Avatar
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    Kaching! Okay. All you're doing is rerouting the gas that's cooked off to the top of the stove where it's burned. I got you. I can see where having it just right would be crucial. Cool. I look forward to more posts.
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  12. #32
    Senior Member hunter63's Avatar
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    I thought you were also talking about generating the gas and then burning it, as in the MEN vehicles and power plant.

    The way you are is burning the wood, kinda twice, is supposed to be how my Quadra-Fire wood stove burns, with a secondary heat exchanger.
    Intresting.
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  13. #33
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    Default Update!

    This is the stove packed up! Another reason it beats a HOBO.

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    I made a burner spacer and an adjustable air intake...a little water in the bottom can will make it safe to burn on surfaces. Also making the pot....it is really a stainless bowl....moded with a wire removable handle. More to come!

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    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

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  14. #34
    Lone Wolf COWBOYSURVIVAL's Avatar
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    I have it all painted in sexy grill paint now! Also found she fits great in a Crown bag! Ready to test it out more...just have to find the time!

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    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

    "How can you tell a story that has no end?" Doc Carlson

  15. #35
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    Quote Originally Posted by crashdive123 View Post
    I don't think the gasses produced by burning wood are the same as those produced by wood under high temps that are not allowed to burn. Isn't the idea of wood gasification to produce a fuel (think propane) to power an internal combustion engine or a gas stove? Maybe I'm wrong - I haven't done it, and haven't studied it extensively. Looking forward to what you end up with. Either way, it's a cool looking set-up you've got.
    Kind of tested your above theory the other night and it just hit me that it was what I was doing. I tried to gassify 4 charcoal briquets and guess what? Ah, no gassification, I am guessing this is why charcoal burns rather clean because it has already gassed off during production.
    Keep in mind the problem may be extremely complicated, though the "Fix" is often simple...

    "Teaching a child to fish is the "original" introduction to all that is wild." CS

    "How can you tell a story that has no end?" Doc Carlson

  16. #36
    Not a Mod finallyME's Avatar
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    Great stove CS. I made one that size and it worked great. When I made a smaller one, it didn't. I used a coconut milk can as the outer and a tomato sauce as the inner. I think it was too narrow and deep for proper gassification. It did gassify, but eventually went out, and I could add any fuel or it went out. The one I made with a monster can as the outer and an asparagus can as the inner worked a lot better. But, I thought it was too big for my needs, so I ditched the whole idea. So, my only recommendation would be to not make it too small. But since I am late on this thread, it looks like you are not in need of any advice. Again, good job.
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    Quote Originally Posted by COWBOYSURVIVAL View Post
    Kind of tested your above theory the other night and it just hit me that it was what I was doing. I tried to gassify 4 charcoal briquets and guess what? Ah, no gassification, I am guessing this is why charcoal burns rather clean because it has already gassed off during production.
    Bingo. Yeah, it is the same process, or reaction, or whatever.
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  18. #38
    Senior Member Winnie's Avatar
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    I was confused The same as Rick and Crash too, but now I see it's basically a Kelly Kettle, is that right?
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  19. #39
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    Quote Originally Posted by Winnie View Post
    I was confused The same as Rick and Crash too, but now I see it's basically a Kelly Kettle, is that right?
    No. not really. A kelly kettle has a fire inside a chamber and heats water that is directly in line of the exhaust. But, in the end, it is still just a basic fire burner. A gasifier is different.
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  20. #40
    Senior Member Winnie's Avatar
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    Oh now I'm confused again. Think I'll re-read this thread again.
    Recession; A period when you go without something your Grandparents never heard of.

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