So, I built one of these today.
I built it more for fun then to cook with.
I like a campfire. In the summer the smoke keeps the bugs away. It provides light and in the winter warmth.
Thing is I don't like burning large amounts of firewood. It's wasteful and hard to collect.
Since I also do some stealth camping I also can't usually make fires where I'm camping. Even if I can do it descretely I leave behind a fire ring which is pretty hard to hide. This is contrary to leave no trace ethics that I hold in high regard, especially when stealth camping.
I figured with a woodgas stove I can build a fire quickly in a wide variety of conditions and fuel it on very little wood for quite a while.
What finally set me off was Ryan Jordan's post about his Bushbuddy.
I won't quote it here but it's a great short read.
Every time I saw a shag bark hickory tree it reminded me of Ryan's post. Shag bark is an amazing fuel source as it burns suprisingly hot and long. It also smells great and is common in SE Michigan.
So, how'd the protype turn out?
Wow... for the most part it's great.
It's amazing how it switches over from smoking to smokeless once the top holes ignight the gasses.
Still my protype while better then expected seems to get clogged up pretty quick. My thinking is that the internal can needs more holes. And upon inspectng the original post I can see a single row or double row of holes around the bottom sides of the internal can. I only have them in the bottom in my protype.
Anything that can get more airflow through the internal can has to be a good thing.
I thought their needed to be a big hole in the bottom for ashes to fall out, but now that I've used it I realize it produces so little ash it would take several hours for the bottom of the outer can to fill enough to obscure the air holes.
In fact the full bottom makes it easy to quick light the stove with a little alchohol, which is my prefered cooking fuel. I use it with a tiny little side jet alchohol stove made out of a aluminum Budweiser bottle based off a Mini Bull Designs stove. Great stove.
I did an initial test boiling water but quickly melted the cylinderical pot support made out of a piece of spare can with lots of holes. I have some heavier aluminum I'll try next, but for me it's not about the cooking.
Am also still a little concerned about crushing the stove in my pannier bag, but it otherwise is extremely light and packs well in spare drawstring sack I had lying around.
Oh, it's suprisingly fairly clean. Sure it produces soot if I were to cook on it, but as I'm not cooking any remenent of soot remains on the inside while the outside remains clean.
All in all I think it's going to be a great tool this winter for camping in the snow and extreme cold.
I am curious if there have been any new improvements on this design or any newer designs... i.e. with a sturdier Hieneken can.
BTW, Thanks for posting!