Nice bit of DIY there J like the fact that it's smokeless and fuel efficient If you get around to it, update us on boil time say for .5 L of H2O
Okay test result. Half liter of water took 5.5 minutes to boil. Ambient temp is 5°C, with very slight breeze that push flame to one side.
I haven't used mine much, but the stove seems pretty wind sensitive.