There are two types of LPG gas - propane and butane. They have similar properties but different applications. They are not interchangeable due to the different operating pressures and burner settings required. Valves and fittings are also different to avoid confusion or accidental use of the wrong type of LPG gas.

Propane has a lower boiling point than butane so it will continue to convert from a liquid to a gas even in very cold conditions. When stored as a liquid in a tank, it exerts a greater pressure than Butane at the same temperature. So Propane, as an LPG gas, is most suitable for exterior storage anduse. Its ability to operate in low temperatures makes it the most suitable LPG gas fuel for many applications.

For the consumer, it's widely used for domestic central heating and cooking, especially where mains gas is not around. It is a popular fuel for rural locations where a self contained LPG gas supply is essential. In industry, propane is used for fuelling roadside emergency lighting, heating bitumen for road building and roofing, firing furnaces and welding equipment. The relatively clean exhaust from LPG gas makes it highly suitable for powering fork-lift trucks in warehouses. Farmers too find propane essential for agricultural uses such as heating poultry and livestock sheds, crop drying and weed burning. And of course LPG also provides fuel for all kinds of transport.