Pro tip: rotary drill beats hand brushing on glazed tile flues
Tried both on a 30 foot tile liner in Bakersfield last Thursday and the rotary drill with a poly whip got the creosote off in about 20 minutes versus an hour and a half with the hand brush. The glaze doesn't get scratched up like I worried it would, though I still take it slow around the top two feet. Anyone running something different for really baked on stage 3 stuff?