For centuries folks have been trying to find ways to take care of creosote buildup in their flue and passing it down through the generations. Old days it was common to throw a live chicken down the flue to remove the soot. Progression took us to burning salt and aluminum cans. Now, not capping the chimney because the birds and rain keep it clean. The scariest, “I set mine on fire intentionally every year and burn it all out”. Many lives and homes have been lost because we didn’t know what worked. Today, we have codes, standards, and technology that gives professionally trained chimney sweeps the knowledge that wasn’t available to our predecessors.