Roger Lehet certainly knows his way around wood stove chimneys. This comes from his 30+ combined years as a chimney sweep, a brick & mortar retailer, and more recently as a wood stove manufacturer with Unforgettable Fire™ [the wood stove company that he started]. Roger has thus far been on my roof twice. Not only did he work to be sure that my wood stove chimney was clean and safe—but as a bonus, Roger even swept my roof of pine needles and he took care of an active hornet nest in an abandoned gas vent without being asked to do so. Roger Lehet is one of those guys who actually cares about his customers.