My first wood gasifier attempt

Thank you for the recommendation. Will do for sure!

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I do have a sealed lid on this thing though, and the air is introduced only through the nozzles at the hearth
 So as far as my understanding goes, this shouldn’t produce quite as much tar as the fema does

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I had to read back and for some reason it seems I completely missed this thread back then. Don’t know how that happened. Good to know what page you’re on.
You mentioned your mother tounge is Swedish, but you live in Finland. Do you live on the Swedish speaking coast-line or did you move from here?

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Hey Daniel

I am in JO corner . I have been driving wood gasifiers for over 20 years and an estimated half million miles . At the moment I can’t think of anything I would do differently if I built another.

Caution A good wood gasifier will cause tires to wear :grinning:

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This has been 2 autumns in a row now, still not sure what the problem is.
This year I haven’t touched anything around the throttle or the nozzles, (before I cleaned and put new charcoal in there) I think that after driving for a while the ash seals so that the tar can’t slip past the throttle.

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Congrats on getting that to work! You are making me want a tracked machine!

I just have to say it you Swedish folks are phenomenal!! I can’t believe how good you guys are with wood. It is like magic and you are one with the forest. I have heard of trees communicating with each other. but I never dreamed you folks could teach a bag of wood chunks to drive!! :rofl:

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Hi Daniel, a good option is to be able to run the engine on gasoline, about 5 minutes before shut-down, gasoline, in a hot engine, and maybe some e85 mixed in, flushes away some of the tars.
(Whish i had built it that way on my first builds)

Just to “torture” myself some, i’ve put some stuff in a pile, for a future mini wood-gasifier, i will try cutting twigs in pellet-size, to run it.
But this will start as earliest next spring.

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Daniel you said you’d used conifer wood? Yes? Or maybe that was JanA.?

The important point all of the use pre-made wood charcoal Black-Handers gloss over is that for engine fuel grade wood charcoal you need to process and grind down to the needed particle sizing you must use a hardwood tree. Conifer stem wood charcoaled is fragile and will crumble to unusable char powder dust.
The in woodgas system conifer chars made is not mechanically handled and disturbed. Used up as made in place.

Yeah. Yeah. For us in predominantly confer wood forests just hippy-skippy then right past the majority of the trees and their wood and seek out the rare native hard woods to feed your charcoal system.
NOT going to happen here PNW westside of my state by me, and others here. Our energy trees are native conifers.

It’s not that they lie; or even intend to deceive. They live in predominately hardwood trees areas. They cannot, and will not ever understand those of us who do not. They lack flexibility in imagination when talking on a world wide Do-It-Yourself-for-Yourself forum.
Steve Unruh

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I think you are missing our point. To learn the technology this is where you start, you learn the foundations, you get to experience what a reliable working system should be. You build this first its simple and can done in day without going broke or investing a ton of time into. Then let the ideas flow.

Softwood charcoal works just fine. Its not as good as hardwood fuels but its certianly usable for charcoal fuel. Especially the conifires you have, those trees are litterally where most of our building materials come from. Ive converted tons of waste building materials into charcoal. I litterally had a pallet company giving truck loads of it away daily and it all was used for heating and converting to engine fuel charccoal.

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Here have been my experiences gasifing for engine grade fuels using different woods.

First the differences in characteristics begins with a softwood versus hardwoods.

Then a bigger differences between using a raw, as cut was live wood, versus a “dead” wood.
Live/raw wood is sap filled. Great for sawing and shearing. Difficult for immediate planing and smoothing-sanding.
Gasifing the saps wet or dried gives tarring problems yes but rewards with a higher energy content by volume and weight when to H2, CO and CH4 fuel gasses converted.

Now soft woods or hardwoods made “dead” stabilized . . .
forced kiln dried-cooked . . .
years aged in-place . . . insides a building . . . out in the weather . . .
changes gasifing it significantly.

So on the one hand this being a “first gasifier attempt topic” relevant to advise a person to go easy charcoal gasifer as a beginners machine.

But just say you actually have made the choice to truly live Rural. Your best available on-hands source for gasifer fuel is trees grown on your own property. Not for you Urban stabilized pallet woods scrounging. Buildings demo wood. Urban housing construction end cuts stabilized woods.
True Rural living you will want to take the longer learning pathway approach to using a direct fed raw wood fueled gasifier.
What Wayne Kieth did.
What JanA., J.O., Tone and others have done.
Me.
Just because most-other’s cannot, will not, do raw wood gasifying does not mean no one else can. That it is impossible.
Being the exception; done enough times, is what makes a person exceptional.

The real myth, lead-astray-lie we need to keep killing back here on the DOW is the “all bio-mass can be gasified”. And that is literal crap talking. MDF. Particle board. Fiberboard. Even OSB are crap gasifier fuel stocks.They will not conversions deep down do gasses exchanging. Only surface react. Will not char good. Far too high of nasty smoky combusting binding resins.
Steve Unruh

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Yes, live in Österbotten (west coast of Finland) and have lived here my whole life. Where many of us speak both Swedish and Finnish fluently.

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Good tip! This is what I am planning on doing on my current generator. Just use the fuel shutoff whenever I run of the gasifier.

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No one is saying this

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Hi Daniel, I guess then this one is easy for you :smiley:

If you want, skip to 0:45 when the song starts

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:smile: Haha, That’s a good one. :smile: In all seriousness, some of the northern finnish dialects can really be a bit hard to understand for me too sometimes.

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Same here, there are dialects in the province I live in that to me it might as well be an alien language :smile:
(Perhaps a little exaggerated)

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Hi Daniel, Finland you say? Then i guess you’re bound to raw wood gasification :wink: with a charcoal gasifier the other Finland “woodgassers” wont even talk to you. :joy:
Joke aside, in Finland probably the biggest interest in woodgassing in the world, and many clever woodgas inventors during the years. :smiley:

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