me, my father, and my brother all do tree removal. they heat their houses with a wood stove.
its highly cost effective for them, since the fuel ( wood ) is free. but its a VERY time costly task.
you have to cut, split, and stack the wood, you need the place to store it, and you have to fill the thing twice a day. he goes through almost a cord a week i think, for a pretty large house.
heres my advice. if you get a wood stove / boiler, get a GOOD chainsaw, and buy a decent wood splitter. call the local tree removal companies nearby you and tell them if they need to get rid of wood, you WANT it. you dont want to pay for it though, since you are doing them a favor by giving them a place to get rid of their logs. i dont know where youre at but... you need to tell them HARDWOODS only. with the exception of maple.
we give away 70% of our wood. dont let anyone drop off boxelder, or willow. maple, ash, oak, elm, walnut, black cherry trees all split and burn good. we give away so much wood because we dont have time to cut, split, stak and sell it... we make more money cutting down the trees and it helps us to have people we can just dump it off to.
itll take a long time before the high initial cost starts to pay for its self, but if you plan on before there for 20 years and get free wood the way i mentioned, itll pay off.
any questions send me a message
ETA- ive seen alot of people get good stoves for $6500 but i dont know if that includes install / water pipes / etc... and it helps TONS to put them in an insulated shed with a chimney sticking out... by doing so it saves ALOT of wood while providing better heat