I am looking for a wood stove that will burn overnight, is cast iron, I prefer north south loading ability, but not absolutely necessary, and it has to be able to heat a small house (500sq ft) even in -40 cold winters. I'm thinking about the rangeley, regency/hampton h300 or Alderlea t5. The thing I need to know is if it will heat the house in very cold weather but also in mild weather without it being too hot in there. I am new to wood stoves. If i get the smaller stove, will it heat the house in -40? Will it last overnight? Also this house has a wooden floor and a partial basement where the pipes are. I don't want them to freeze. The house has blow-in insulation in the walls and in the attic, but old windows. Not too drafty. Anyone out there in very cold regions with experince? I'm in central Canada.