CHIMNEY SWEEP NEAR ME NO FURTHER A MYSTERY

Creosote, the black or brown residue of combustion that collects on the internal surfaces of the chimney flue liner, is highly flammable. If allowed to Make up, it might catch fire, triggering cracks in "fireproof" brick, stone or clay flue liners and permit warmth to succeed in nearby wood framing and various combustible elements in your house. A