👉 A steam is a substance that has high temperature and pressure. It is formed by the fusion of solid or liquid substances in a process called combustion, where heat is transferred to the substance through chemical reactions. Steam can be produced from a variety of sources such as coal, oil, natural gas, or biomass, depending on the type of fuel used. A steam boiler is a device that converts the energy contained in steam into electrical power. It consists of several components including an igniter, a combustion chamber