After more or less successfully installing a wood insert/liner at the beach place, and totally digging it, I'm eyeing my presently non-functional coal fireplace as a candidate for a stove. The chimney appears to be unlined masonry (outside wall), and probably in the 25' range, ~10x8". i have to see what the chimney looks like on the roof, as i have my gas boiler and water heater venting to apparently the same chimney, though there doesn't appear to be a connection with the fireplace chimney. the fireplace is small. my downstairs (what i'm primarily concerned with heating) is open, and about 1100 sq ft. This would likely be supplemental heat--the rest of the house is boiler/radiator--but if I can heat the whole thing, great. Doesn't get too cold here, usually low 30's at night during the winter, sometimes 20's. the fireplace is 21.5"W in front, tapering to 18.5". 26.5" high, and 32"D (including hearth--will likely need extending). What are my options for a stove for that opening? i'm guessing that i need something long and skinny-- http://www.northerntool.com/shop/tools/product_200339109_200339109 or so, though that isn't exactly what i'm looking for. looks like it would be easy to drop a 6" liner down it, appears to be a straight run.