One of the most relaxing things found in an older home is quite often a fireplace. Nothing beats sitting beside a cozy fire, drinking hot chocolate and listing to the fire pop and crackle while the cold winter winds howl outside. And if you have a wood burning stove in your home, its comforting to know that your winter heating bill will be much less when you burn wood. But, with this comfort and savings comes danger. Creosote, an oily liquid which is formed by burning wood, can...