According to the Consumer Product Safety Commission (CPSC), more than 140,000 woodburning-related fires, 280 deaths and 2,500 injuries occur each year. Some of the major causes of woodburning related fires are: * Inadequate clearances from the unit to combustibles, such as walls, ceilings, floors, and furniture. * Excessive creosote buildup in the chimney. Creosote is a black substance that resembles a tarlike liquid or small black flakes. Creosote burns easily. * An improperly installed or poorly maintained chimney. * Improper installation and maintenance of the appliance. Heating with solid fuel requires that you become aware of these and other hazards and take whatever action is needed to correct them. The consumer Product Safety commission estimates that about 45,000 chimney fires occur each year. These fires are often a result of poor maintenance and inadequate cleaning of the chimney.