👉 A boiler is a device used to heat water or other fluids by circulating it through a closed circuit. When the boiler is in use, it creates steam that can be directed into a turbine and used to generate electricity. Reboilers are a type of boiler that uses a different method of circulation, such as a centrifugal pump or a reciprocating pump, instead of a continuous flow of water. This allows for a more efficient use of the boiler's energy and produces steam in a closed circuit