I just cleaned the chimney before the season starts and lost a lot of terracotta. We've decided to finally install a liner in the chimney, but the largest one that will fit is 6 inches. So now we are looking into getting a more appropriate stove for the opening size, as well as for the living space. Don't worry, the Fisher is being reused up at my parents cabin. So it is going to a good home. I've had a Fisher Grandpa Bear in my basement for about 6 or 7 years. It's worked great, even though it was a little smokey sometimes. But we never filled it to capacity, because it was just too much heat. We are looking for a replacement that is; 1. Big enough to fit a 24" log. 2. More efficient so we don't have to bring in so much wood. 3. Easy to operate and maintain. I love the simplicity and lack of breakable parts on the fisher. You light it, fill it, and forget it. I would sacrifice some efficiency if it meant is was easier to work with. 4. Able to heat at least 1500 sq. ft. We have a second wood stove that heats the living room and bedrooms. This one will heat the basement family room, kitchen and dining room. 5. Uses a 6" flue. We use wood exclusively to heat our house, so this stove will run nonstop from October to March or April.