I have an existing fireplace in my house that doesn't heat well at all. I want to upgrade to a Oslo wood stove placed on the hearth and vented out the rear to my existing chimney. With a new chimney liner of course. My question is whether or not the stove will be big enough. My great room is 26ft by 26ft with a 10/12 pitch ceiling topping out at 20ft in the center. I also have the tradition wall of windows facing the lake, as well as a few other windows throughout the room. It a new home with 6 in. walls insulated well and very air tight. Even thought the square footage isn't all that great, the cubic volume is large. The oslo's dimensions are perfect for my needs, but will the stove be enough for that room? The whole house is 1850 square ft. I just can't afford propane anymore... $3.00/gallon up here!!