Knowing which immersion heater to specify and how to properly install it can make a manufacturing process more cost efficient. This article will help you understand how to select, size and specify immersion heaters, and will provide guidance on installing and using the heaters. Immersion heaters, as the name implies, are directly immersed in water, oils, viscous materials, solvents, process solutions, molten materials and gases. By generating all the heat within the liquid or process, these heaters are in effect 100 percent energy efficient. Many designs are available from heater suppliers as stock items and are offered in numerous sizes, kilowatt ratings and voltages, and with a variety of termination connections, sheath materials and accessories. Manufacturers also can custom engineer an immersion heater or system for a specific application.
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