Natural gas tens of millions of structures that use the fuel, the individual risk of using natural gas is very low. Natural gas heating systems may cause carbon monoxide poisoning if unvented or poorly vented. In 2011, natural gas furnaces, space heaters, water heaters and stoves were blamed for 11 carbon monoxide deaths in the US. Another 22 deaths were attributed to appliances running on liquified petroleum gas, and 17 deaths on gas of unspecified type. Improvements in natural gas furnace designs have greatly reduced CO poisoning concerns. Detectors are also available that warn of carbon monoxide and/or explosive gas (methane, propane,
China Natural Gas China Natural Gas China Natural Gas Inc. is a Chinese energy company that, through its subsidiaries, is engaged in the distribution and sale of natural gas and gasoline to commercial, residential and industrial customers in the Xi'an area and the Shaanxi province of the People's Republic of China. The company also engages in the construction of pipeline networks. It offers natural gas through a network of approximately 120 kilometers of high pressure pipelines and sells compressed natural gas as vehicular fuel through a network of filling stations in Shaanxi and Henan provinces. China Natural Gas is the first Chinese natural