OK, call me the moldy oldy guy. I keep going in big Google trips in my research, and end up in strange places. This one has me a bit puzzled. This Eko coal boiler is the same unit (as near as I can tell) as the Biasi 3Wood wood boiler. From all I've read, the 3Wood is about the best you could expect from a non-gassing wood burner. But the Eko coal lit. does not mention even the possibility of burning wood, and this thread strongly advises against it. The 3Wood is pretty dear up here ($6k for the 3Wood7, for craps sake), and they're selling some. So I would appreciate more input (after 3 1/2 years) - would it be a real bad thing to get one of these & burn wood in it?