Lincoln Fire department responded to a basement fire in a two story wood framed home. Engine 4 and Engine 1 on arrival had smoke showing from the rear of the home. Attack line was pulled to the rear where the fire was discovered on a pressed pile of cardboard used for an archery target. Investigators found remains of an extension cord that had been wrapped around a 1" gas line and plugged into a electric heater. The cord shorted out and dropped on to the cardboard target lying on the floor. A second alarm was called for a Squad for manpower. 02/10/99 13:36