Heating is an integral part of everyday life like various
types of cooking but when this heat is required for large manufacturing units, industrial heating elements are
required. Every industry requires a special type of industrial heaters and so the heater selection is the most
important part of this process.
Heaters come in a variety of distinguishing features,
shapes, sizes, performance specifications, energy sources, special application
and environment controls as well as RoHS / WEEE compliance. To understand which
product suits your process best one first needs to understand their
classification.
- Classification as per
application: The common classification in this
case is the duct heaters, circulation heaters, immersion heaters and space
or room heaters. The duct heaters heat a gas moving through a duct like
seen in a room heater. The circulation heaters use the moving streams of
fluids to transfer heat. The immersion heaters are placed inside the
substance that is to be heated and room heaters heat up a confined space
and are generally portable.
- Classification by medium: The heaters under it are simply classified as air heaters or
water heaters depending upon the substance they heat. An earlier
classification also had oil heaters but they are now mostly classified
under water heaters that are made with special materials.
- Classification by physical
properties: This grouping consists of flexible
heaters and explosion proof heaters. Flexible heaters can be molded as per
the shape of the container or of the heated object while the explosion
proof are constructed with protective housings that can be heated and
resist sparks and flames.
- Classification by fuel source: The commonly used fuel sources for the industrial heating elements define this type of heater in the
form of electric heater, gas or propane heater and oil or kerosene
heaters. The gas and oil heaters have very specific applications while the
electric heaters are the most commonly used industrial heaters nowadays as they do not produce any
environmental pollution.
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