After what Scott said I found the fresh air intake has been sealed shut, Why I do not know. I did try an experiment this weekend the fireplace has a huge ash cleanout under the firebox, I propped the cleanout door slightly open and opened the cleanout in the floor of the firebox, that helped immensely, the doors did not get nearly as much cresote buildup as before. I will get in and clean out the fireplace and see why the intake air is sealed off. Also it still backdrafts when I open the doors to add wood. The height of the chimney is slightly above the roof line and barely 2' above the 10 foot distance. I have seen a vacu-cap that is supposed to increase the draft. Has anyone seen or used one of these and do they work. Thanks Again wildwillie