i had a large hickory i bucked, split and stacked last year. its either a pignut or mockernut. its burning terrible. not a whole lot of heat, and the amount of ash is simply insane. my stove is simply full of gray, fluffy ash each day. it doesnt happen with oak either. all the ash is keeping the coals from burning completely too, so i get a bunch of charcoal mixed in. i split it pretty small to make sure it dried quick. i checked a fresh split yesterday = 17%. not bad at all. any ideas?