That's not a boiler, it heats air which is transferred to the house through that duct. I've seen that picture before on one of the other forums I read. That's been a while back, so maybe hot water capacity has been added in the interim, though.
a properly operated OWB produces very little smoke.
the have an automatic dampining system.the only time you see any noticable smoke is when the door is open,at startup,when burning unseasoned wet green wood.
some baffon here in CT was burning tires in his so now they want to ban them.don't buy all the negative hype about outdoor wood boilers.my partner has a central boiler and it barely smokes while under normal running conditons at all.smokes a little when it's raining and the air is heavy with moisture.his neighbors say it doesn't bother them in the least.i cannot speak for other brands but the CB around here i see aren't dumping smoke.
This don't look like no outdoor wood boiler. That thar looks more like a still to me. Moonshine factory. Hooch. White lightening. Portable too. Keep ahead of the law.
I must say that is one heck of a creative boiler, for whatever reason you are boiling with it.