[Stoves] Magh Smoke Burner Stove

[Crispin Pemberton-Pigott]

Dear Dr N

Thanks for posting those excellent pictures.

I have a suggestion that might limit the flame height a little which will 
probably lower the CO production a little.

Take a steel pin the same size as the drill that made the holes at the top 
and insert it into the hole from the outside of the cylinder, and lift hard, 
creating a protruding lip that angles the air blast downwards slightly.  The 
pin will dent the lower side of the hole outward and the top inward toward 
the centre.  This will cause the air blast to blow down toward the centre 
and do the mixing at a lower level, nearer the fuel.

If you were to simultaneously angle it slightly to the side, you could also 
get a rotation going which will increase the flame path length inside the 
cylinder and reduce it outside, again reducing CO production and probably 
increasing the heat transfer efficiency.  Ideally no flame will exit the top 
of the stove.

If you are able to, don't drill a hole at all, but make a small horizontal 
cut then force in the pin.  This will give the hole a more effective 
air-directing capability.

Nice stove!
Crispin