Hbob Stove - Technical Design

jonnno

Forager
Mar 19, 2009
223
0
50
Belfast
I have a few hobo stoves made from Ikea Cuttlery drainers with a section cutout at the bottom for fueling. I've had mixed results - I think type, size and dryness of wood makes a big difference.

However, as I read more about it, the "Classic" design seems to be a paint tin with 3 holes at the bottom front and 3 holes top back. Then once the pot is put on air is drawn in the bottom, through the fuel and out the top back - it seems this is a highly efficient way to burn fuel. The ones I keep seeing either holes drilled all over the place (in a row around the top for instance) or are made from a tin already full of holes (like the drainer).

What I'm wondering is, if I get a tin just with holes bottom front/top back will it work better or would it be much the same? Logic seems to dictate that drawing air in at the front, through the fire and out the back with the pot stopping escape through the top is actually incredibly efficient.
 

HillBill

Bushcrafter through and through
Oct 1, 2008
8,166
159
W. Yorkshire
Holes at the front/bottom and back/top work much better that lots all over.

Bottom holes into the wind for a fast hot burn, top holes into the wind for a slower simmering burn.

This method produces much increased efficiency as you dont lose the heat as much as you do with a drainer.
 

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