Hello all, New to the forum with the exception of conversation with Coaly "super knowledgeable". I currently am burning a Grandma bear in my home, 2250sqft. Shes been cooking along since installation in 1993. She is a post 1980 with the arched style doors, but the person I bought her from said it was early 80s when they got it. I own a split level home and the Granny is down in the family room, heats super but don't get quite enough heat up stairs. I recently purchased a baby bear from an ad in paper, elderly woman just wanted it gone for $100. What a find, the stove is nearly mint, looked like only used a very few times. This is an older square door style, I plan on putting this in our upstairs this coming spring to heat the upstairs bedrooms. With the advise from the forum, shouldn't be a problem. Also I have a friend this past summer offered me a stove he had in storage, "Yup a Fisher" happens to be a mama bear, pre80's. This stove will need some love, taken down repainted and new fire brick. If all goes well I plan on building a garage in my yard and guess my heat source, you got it! If you have more than one fisher in your house, or bi-level home, I would like to here how well they do. Dave.