Natural gas is a flammable gas that is typically used in heating systems for schools, universities and dormitories to name a few. It consists primarily of methane gas but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulfide, or helium. The boiler room is usually the source of the natural gas, an enclosed area that is not frequented very often. This only increases the risk of a leak going undetected. A leak of any type not only wastes expensive fuel but could also have disastrous results such as an explosion causing loss of life and structural damage.