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  1. Open Coil Heating Elements Open heating coils usually consist of one or more bare heating wires made of nickel, chromium, or other metals with high thermal conductivity. The heating element is exposed to the air or fluid, so the heat transfer efficiency is high, and the heating speed is fast.
    www.hasteco.com/what-is-a-heating-coil/
    Open coil heating elements are coiled resistance wire (usually Ni-Chrome or Kanthal, but also others) fixed onto a supporting element. Selection of correct wire gauge, wire type and coil diameter requires experience in industrial heating. Standard air heating elements are available on the market, but quit often they need to be custom built.
    www.deltat.com/open_coil_elements.html
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  4. Estimating Resistance Wire Temp | Tutco-Farnam

    Estimating the Resistance Wire Temperature for an Open Coil Heating Element. by Dexter Diepholz. For a typical convection air heating application, the air temperature and the volumetric air flow entering the heating element, and the …

  5. Estimating The Resistance Wire Temperature For An Open Coil …

  6. Open Coil Heaters | Duct & Residential - TUTCO HEATING …

  7. Coils & Heating Elements - Resistance wire

    Plug. Rack. Customize Your Heating Element. From simple end tails to complicated twists, eyes or loops, we can achieve terminations that meet your application. We can also attach terminals by crimping, soldering, riveting or …

  8. Open Coil Air Heating Elements - Delta T

    Open coil heating elements are coiled resistance wire (usually Ni-Chrome or Kanthal, but also others) fixed onto a supporting element. Selection of correct wire gauge, wire type and coil diameter requires experience in industrial heating.

  9. Heater Coil Design | Tutco-Farnam - Tutco-Farnam …

    In the design of a custom open coil heating element, several factors need to be considered when selecting the optimum coil(s) for an application. First, the watts, volts, and resistance must be determined for each coil in the heater.

  10. Coiled Resistance Wire Wound Elements - Keith …

    Keith Company manufactures wire wound (aka coil resistance wire) heating elements that work best for air velocities of 5 to 2,000 SFPM. Higher air velocities could cause the coils to touch each other and short out, so tubular air heaters …