Those of us with fireplaces and wood stoves have been basking in the glowing embers and brilliant red, orange, and yellow flames of burning wood and pellets. All that comfort and joy can come to a tragic end though if your chimney has not been properly cleaned of creosote, soot, and other residues. Hot smoke can ignite these materials inside the chimney. Also, toxic smoke and carbon monoxide, which is undetectable to humans, can enter your home. (Photo by Kgreggain, Stock.Xchng)

