Wire Coil Heaters
Wire Coil Heaters
Wire coil heaters typically use a coil or a piece of wire to generate energy, converting electricity into heat through resistive heating, also known as Joule heating. Coil heaters are available in different configurations: closed coil, straight coil, spiral wound and star wound, and in a variety of shapes and sizes.
Wire coil heaters and assemblies are the heater of choice for scientific measurements, diagnostics, and manufacturing use worldwide. The term “coil” in this case refers to the design of the internal resistance wire, which increases the amount of heat produced when electricity is passed through it.
Coil heaters are straight or pre-formed electrical heating elements with a metallic sheath. Once they are formed, they have a defined shape. They have a round, square, or rectangular cross section and are available in a variety of shapes and sizes. Coil heater configurations include straight, close coiled, spiral wound, and star wound cables.
- Straight cables are used to snake through or around equipment and may also be formed by the end user to suit manufacturing applications
- Close coiled cables offer optimal heat distribution and may have distributed wattage to concentrate heat transfer at specific locations
- Spiral wound heaters are low-profile and used to generate high temperatures in restricted areas
- Star wound cables are offset and are inserted into pipes or ducts; they create turbulence on air or fluid flows that help to increase the transfer of heat
Coil heaters can be adapted for movement, moisture, dimensional limits, material, and other factors that create a challenge for heating a specific component to the desired temperature. Coil heaters are typically flexible to adapt to the shape of the object or the shape that needs to be heated.