Ok, ran out of my oak that was split and seasoned for 2 years...now on to the maple that was cut in Jan 08, split in March and stacked in June 2008 with the top covered. It seems to take a little while longer to get it going, but once burning it seems to burn welll at 500-525 or so with the damper about 3/4's closed. Question, if there is no white/puffy smoke coming from my chimney....would you say thats its dry enough to burn? Or, can you get creasole buildup even with no white smoke from the top of the chimney? Thanks.