I am new to this board and I would like some info about using a wood boiler furnace in mild temps say from 30 degrees to 55 degrees. My only experience with wood heat is my father's boiler which is from the late 70's so I'm not sure how technology has evolved. My fathers boiler will not burn properly unless the outside temp is below freezing, and preferably mid 20s or colder. I'm not sure if this is a limitation of the boiler or if there is simply not enough heat demand at warm temps above freezing. Can anybody provide an explanation? I'd like to use wood heat for a home that is still in the planning (and $ saving) stage. It would be 2,600sf two stories and mid grade insulation. I want to use wood heat as much as possible. Is there a central boiler system that can operate at wide temp ranges like 0-50 degrees? Should I use a small wood stove for heat when temps are above freezing and a boiler for temps below freezing? It seems inconvenient to use two systems but I'd rather do this that rely on fossil fuels for heat. Any input is appreciated.