I have the same question! I'm living in a 200 sq. ft. "yome" which is insulated canvas and round and sits on a wooden deck. There is an opening for a stove pipe. And we generate plenty of small wood on this small fruit farm. Can one make a RMH small enough for this Northern California, not too cold place? The owner is concerned about emissions and likes the RMH for that. Could it be really easy as I'm more of a plant person than a builder......