Do the fans that increase draft such as the Exhausto fans really work? The height of my chimney is only about 12 feet and since my hearth is raised, the distance from a stove's rear exhaust to the top of the chimney is about 9 feet. What is the best way to incease draft? A chimney pot (would have to be quite large though), a fan like the exhausto fan that sits on top of the chimney, or a some sort of in-line fan? And as far as the liner, I already plan on insulating the liner or getting some of the rigid liner with the factory installed insulation... As usual, I really appreciate everyone's help.