The gas company or a qualified appliance repair person or plumber should do this work. Check to make sure your smoke detector is functioning. Smoke detectors can save your life in a fire. Check the battery frequently to make sure it is operating. Fire extinguishers also are a good idea.
Gasoline is made to explode.
Never use gasoline around ignition sources such as cigarettes, matches, lighters, water heaters, or electric sparks. Gasoline vapors can travel and be ignited by pilot light or other ignition sources. When cleaning up from a flood, store medicines and chemicals away from young children. Poisonings can happen when young children swallow medicines and household chemicals. Burning charcoal gives off carbon monoxide.