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What Does a LPG Gas Engineer Do? LPG is a fossil fuel, manufactured by refining petroleum, or extracted from natural gas streams when they emerge from the ground. It has an extremely low boiling point therefore it is stored in containers with a pressurized seal. It is used to heat and cook your home. It also provides an alternative to electric, coal and kerosene heating systems for those who do not have gas pipes. Customer Service LPG can be used as a fuel to cook and heat your home.