anyone here have one or know anything about them. this is my 1st year running this stove and i have a couple questions. seems that the glass gets dirty quick. i did have a fresh air intake hooked up to it, but just seemed the flame was real lazy. i dissconnected it and it was like night and day. glass still gets pretty black in a day though. is that normal? also, my wife has been complaining about black soot throughout the house. kind of like black cob webs i guess. the unit is installed in our basement. there is 4 feet of vertical 3 inch pipe and then it goes out through the foundation.