Another of Scott's Do It Yourself backpacking stoves. After building somewhere around 20 different alcohol stove models I find myself becoming intrigued with wood burners for backpacking. I like the idea of not having to pack so much fuel, and there's just something wonderful about sitting in front of a real fire.
This is a double wall, wood gassifier stove. It is supposed to be an extremely efficient wood burner, making very little smoke and leaving very little ash. The principal is a little hard to explain, but it works by igniting the wood gas as the sticks and twigs burn. Cold air is sucked up through the bottom vents in the outer layer, it is heated as it moves up to the inner vents at the top. When you get the burn just right, it looks like flame jets are coming out of the top inner wall holes, but really it's just because that's where the oxygen mixes with the wood gas for combustion.
You can buy commercial models for about $100. Check out the
Bushbuddy and the
Bush Cooker. This one cost me about $5.00 to make and it is essentially the exact same thing.
I'm pretty excited about this little stove. It's smaller than I thought a wood burner would have to be; it fits inside many solo cook pots. I gave it a test run today and am pretty impressed. I boiled about 4 cups of water with a handful of small dead branches, broken up into pinky sized pieces. There is minimal smoke, if done right, though it does blacken your cook pot... I used tin foil to keep mine clean. I found I had to add a pinky sized twig ever 30 seconds or so.
I am liking the idea of having this as my main stove, but along with a small backup alcohol stove for when it's been pouring all day and I'm tired and just don't want to have to bother with finding dry wood for a fire. This way I won't have to carry as much fuel, but still have that safety net for really nasty weather.
Here's the whole thing set up.
The pot stand worked really well.
View of the inside of the stove.
Here's a look at the inside from the bottom.
All the pieces separated.
The pot stand slides in between the double walls of the stove for storage.
The bottom was kept, the stove rests on this so as not to scorch the ground.
All packed up in the stuff sac I made for it.