Earlier quoted context omitted.
Unless he has high-tech stoves, it is pretty polluting. Smoke contains many toxic chemicals. http://www.treehugger.com/renewable-energy/is-burning-wood-f...
Hardly anything wrong with them as far as I can tell, provided you don't have neighbours. I would suspect that all the wood people burn in North America as fuel is greatly offset by all the forest fires people in North America put out. Large-scale adoption of course is not a bright idea, but that's not what this guy is doing. (And it is carbon neutral, so if you're going to burn something, better wood than fossil fue…
It is carbon neutral only if you plant a tree. Which you can do anyway.
Burning gas or oil, which have a better co2/kwh ratio and planting a tree is better than burning a tree and planting a new one.