Hello, Have been lurking for awhile as I research stove brands, and think I have decided on a soapstone stove by Hearthstone or Woodstock. I'll probably have it installed professionally, but neither the installer nor the local Hearthstone dealer sound particularly sure about recommending a stove size. My primary purpose for the stove is a backup heat source for my 3900 sq ft house, presently heated only by natural gas, in an earthquake-prone area (alaska). If we lose our gas in the winter, we're screwed unless we have backup heat. Of course, I also hope to use the stove for supplemental heat, since my wood is free. The house is three stories. My tentative plan is to put the stove in next to the return air plenum, on the second floor, so I can manually run the furnace fan to distribute heat thru the house via the ductwork. That room is only 350 sq ft. I don't want to undersized the stove and be unable to heat much of the house in a pinch. On the other hand, I don't want to oversize it and be cooked out of that room if I just want a nice fire some evenings. I'm currently toying with either a Woodstock Keystone (45,000 btus) or a Hearthstone Heritage (55,000) or Homestead (50,000). Do these seem like a reasonable compromise? If I went by the calculators for my whole house, I'd be looking at MUCH larger stoves. Thanks for any help or advice here!