I owned my St. Croix and problem im having i don't know much about these things at all?? i turned my unit on and its been running for about a total of 30 hours or so i clean it everytike i use it and never have it on low setting number 1 i always keep it at 4 but it seems my first problem is there a black soot forming along both sides of the glass that does wipe off with a paper towel but i don't think this is normal?? How do i fix this? Also it seems like my pelllets keep dropping into the ash tray and while its burning its overflowing the pellets and keeps dropping with into the bin on the bottom and sometime there a small flame with the pellets on the very bottom of tray? its almost like its calling for more pellets and it doesn't need them yet but still calls for them?