If I recall correctly, Tinny used the high efficiency wood stove for boiling water, not as a chimney style wood stove for heat. He gave up because it got the pot dirty. He hasn't really looked at all the options (there is a thread in the MYOG sub forum and I have two videos on my youtube channel).

What are you looking for? Something to boil water, or something to heat your shelter? Or both?
_________________________
Without a doubt, the hardest thing of all in a survival situation is to cook without the benefit of seasonings and flavourings. - Ray Mears

http://theoutdooradventure.net