Heat exchangers are used to transfer heat from one medium to another. These media may be a gas, liquid, or a combination of both.

Heat exchangers heat the cleaning fluids that remove residues from systems components. Heat exchangers create consistent temperatures for pasteurizing and Clean-in-place (CIP). They heat water for effective rinsing of food production equipment (tanks and piping). The use of heat exchangers is made in Radiators in automobiles, Condensers, and boilers in steam plants, Condensers, and evaporators in refrigeration and air conditioning units

One of the greatest benefits of modern heat exchangers is that they do not rely on additional equipment, such as an air conditioning or air compressing unit, to operate. Therefore, they use significantly less energy and produce little or no pollution compared to more conventional cooling methods.