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Resistance Heating A electric resistance heating machine.

The Path of Least Resistance

Resistance heating uses the passage of electric current through a workpiece for process heating or melting. This is performed in one of two ways:

  • Direct resistance heating sends electric current through the material directly, heating it internally due to its ohmic resistance.
  • Indirect resistance heating sends electric current through a resistive element, which then transfers the heat to the workpiece by conduction.

Resistance heating is used in many industrial applications, including metalworking (forming, heat treating, and seam welding), glass melting, metal fabrication, and forging (stamping, extrusion, and bending).

Resistance heating offers a number of benefits over fossil-fueled furnaces, including energy savings, rapid heating, fast startup, higher production rates, ease of automation and material saving.

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Disclaimer

The customer is not required to purchase the good or service from FirstEnergy or the FirstEnergy operating company and the good or service may be obtained from other suppliers. A customer's decision to receive or not receive the good or service from FirstEnergy or the FirstEnergy operating company will not influence the delivery of competitive or non-competitive retail electric service to that customer by FirstEnergy or the FirstEnergy operating company. For Ohio customers, the Public Utilities Commission of Ohio does not regulate this optional service and has no authority to investigate complaints about this optional service.