i know locust has lots of btu's---i burn a pretty good bit of it here. i was talking to a nieghbor the other day who had a chimney fire in a fireplace---he blamed it on burning locust. seems like an un-educated guess to me. most guys around here split wood all summer into october and burn it in december---they have the way wrong idea about "seasoned" wood. what killed me is that the chimney was only a year or two old and burned casually. anyone else burn lots of locust and have chimney/flue issues or feel that it would require additional chimney sweeping attention?