Circulation heaters are generally used for pressurized processing fluids. This type of immersion heater is widely used in application of various industries, such as oil storage, Water, Chemical Treatment, commercial food equipment or cooling towers. Circulator heater’s performance and efficiency are comparable to industrial heat exchangers since they follow an equivalent heat exchanging mechanism. Examples of processing fluids that are used include water steam, oil and other pressurized gases. One of the distinctive advantages of the circulation immersion type is the minimized heat loss during a process flow while maintaining high and efficient heat transfer rate.