If you smell a leak, immediately evacuate everyone from the building and call the fire department from your neighbor's phone. DO NOT remain in the building, use the telephone or light switches or try to determine the source of the leak by yourself.
Water can damage the internal safety mechanism in the gas controls of an appliance. If you suspect that your appliance gas controls may have gotten wet (because of flooding, for example), have a trained technician replace them immediately.
Have your unit serviced if the burner flame is not blue. The blue flame indicates complete combustion. A yellow flame means air inlets are clogged or burners need adjustment. Contact your propane supplier's service department immediately. Do not cover the oven bottom with foil - it can restrict air circulation.
Never use gas ranges for home heating.
For more information about propane safety around your home, you many download this new home safety booklet from the Propane Education & Research Council. (Adobe PDF)