Wood gasification stove.

:D:thumbup:Outstanding post man! I have been wanting to make a wood gas stove for some time and this looks like an excellent and inexpensive way to start.
 
Bushman5 said:
can it not be inserted from the top? seeing as its only a friction fit anyways? :confused:
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It is inserted from the bottom because the progresso soup can fits perfect. the outer rim of the soup can fits inside the lip of the paint can and then stops. It's very hard to put into words. I will see if I can get some new pics of it when I build the next one.

As far as the video posted. it is just burning in the can. it is not gasifying IMO if you see smoke it is not working. When burning correctly there is no smoke, nada. I will post pictures of the stove I built burning and it will be clearer to se what I am talking about.
 
I got an email back from the gent. Its a DOWNDRAFT gassifier. the air enters thru the TOP holes, travels down and heats up, then enters the burn chamber and the heat rapidly rises repeating the cycle. There was some smoke in the video due to the fire having just been lit and the cycle not in full swing yet.

yours appears to be an UPDRAFT gassifier.

great stuff all round. I got a qt can i'm going to hack and build one like yours. still waiting for a #10 coffee can to empty so i can build one like the youtube gent had.
 
Bushman5 said:
I got an email back from the gent. Its a DOWNDRAFT gassifier. the air enters thru the TOP holes, travels down and heats up, then enters the burn chamber and the heat rapidly rises repeating the cycle. There was some smoke in the video due to the fire having just been lit and the cycle not in full swing yet.

yours appears to be an UPDRAFT gassifier.

great stuff all round. I got a qt can i'm going to hack and build one like yours. still waiting for a #10 coffee can to empty so i can build one like the youtube gent had.
Click to expand...

Make sure you post up your results
 
Valcas, is there an advantage to using a paint can over say a 1Kg coffee can?
Bushman, what's a #10 coffee can?
 
d_filgate said:
Valcas, is there an advantage to using a paint can over say a 1Kg coffee can?
Bushman, what's a #10 coffee can?
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I think you can use any cans that will mate up and create a thin air channel between the cans. This is not my design I simply copied what I thought were the best combination based on my research.

The Qt. paint can and the Progresso soup can work like they were made for each other. There was really no thinking or fiddling with it. It just worked.

There are other designs, this one is just a no brainer.

Paul
 
Have you ever tried using fuel tabs (trioxane) in this type of stove? How does it work compared to wood?
 
XMP said:
Have you ever tried using fuel tabs (trioxane) in this type of stove? How does it work compared to wood?
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I plan on trying various setups with this stove this weekend. I will take photos and report my opinions.

1. As a wood stove.
2. with a little alky penny stove that I made up. This would act as the wind screen.
3. I will try it with a triox bar and see how it works.

I'll let you know.

Paul
 
sircantaloupe said:
How do you add fuel to these when they're burning? Just small bits of wood through the air holes?
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In the last picture you can see the space in the pot stand which is made of hardware mesh. you can continue to fee small pieces of wood into it as it burns.
 
valcas1 said:
I was asked by XMP to show how I built my new stove so here goes.

I bought a 1qt paint can from my local Ace hardware. $1.99 this one happened to be unlined which is what you want. If you can only get the epoxy lined ones just make sure you burn it real good before cooking.

015.jpg


This is not my idea but I was told that a Progresso soup can will by friction into the inner lip of the paint can. So a can of Chickarina soup was in order for lunch and I now have this.

017.jpg


I cut the bottom of the paint can out with a regular hand held can opener. Some online research says use a safety cutter but I didn't. I think the only benefit from using a safety cutter is you get a bottom that can be put down as to not scorch the ground.

Now we have to put holes around the top to allow for the draft between the two cans.

I used a Irwin step drill bit. as seen is this picture

019.jpg


You can see how I laid out by vent holes on a piece of paper aand simply taped it to the can as a guide. I went with holes around the top of 3/8" about 1" apart on center.
020.jpg


I am sorry I dont have pictures of this step but you need to put a second series of holes around the base of the inner can. I again used 3/8" and drilled them low on the can.

Now take your paint can that you have cut the bottom out and drill 1/2" holes around the base so that you can draw air in and up the side walls between the cans. I started with 4. I figured you can always drill more if needed. I am still trying to fine tune this part.

Now press you inner can into the inner lip of your paint can from below. It is a perfect fit and will take some pressure to get the inner soup can to seat well.

Looking into the the cans it will look like this.
021.jpg


In the last picture you can see the 1/2" hardware mesh fire grate I made to lift the bottom of my wood off the bottom of the can and over the top of the lower holes.

Final picture is of the stove after several burns. I am experimenting with different pot stands now and will update my findings as I progress.

huntingashleyswinterconcert008.jpg


huntingashleyswinterconcert010.jpg


Hope this helps XMP
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can you take a pic of the bottom of the cmpleted stove for us? :thumbup::cool:
 
valcas1 said:
Not a dumb question at all. if you use one can you basically have the HOBO stove. With this concept you are getting a secondary burn of the wood gas. You can actually see it burn like little jets from the inner holes. It burns much cleaner and there is no smoke from the fire when it is burning. that is the real benefit of this setup.
Click to expand...

Thanks for the info, great post, cool design.
 
How did you get it going? From what I've seen online the bushbuddy gets loaded, then lit from a small kindling fire from the top, and it burns down. Is that how you did it?

I tried to get one going with my own version, but couldn't get it to gasify. It was a fine hobo stove, tho. I think I had too much air at the top and not enough at the bottom.
 
could you post the pics of the cans before you assy them? I wonder how those stoves considered by the ranger when you use them backpacking


Sasha
 
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