We currently use an indoor woodburning furnace exclusively to heat the house (about 1600 sf without the basement). Over the course of a typical winter, we burn approximately 4 1/2 cords of wood. We are considering switching to an outdoor furnace. My question is, do the outdoor woodburners use more wood than the indoor ones? Our neighbor has an outdoor one and goes through WAY more wood than we do, but they use it to heat water as well, which we would not be doing. They also keep their house quite warm (75 degrees) while 65 degrees is fine for us. Any opinions? Thanks!