I almost put one in about 15 years ago but didn't. We ended up putting in a freestanding pellet stove. I had a friend that owned a heating business and he talked me out of it. He said with the upfront cost/operating cost wasn't worth it. Time, chainsaws, gas/bar and chain oil, chain sharpening, hauling/handling wood so it's near your woodburner. Then, when you get up in the morning, you have to go outside when it is cold as hell to load the thing up. A friend of mine just sold his outdoor woodburner few years ago and put an add on pellet burner in the basement and loves it. He said the outdoor woodburner was a wood eating monster and he got tired of keeping up with having wood cut for it and going out to fill it up when it was cold as hell.
Maybe if you were heating an outdoor structure along with your house, an outdoor woodburner might be something to consider?