The Electron Heat Source multiphysics coupling node () applies the heat source from the Magnetic Fields or Electromagnetic Waves, Frequency Domain to the electrons in the Plasma interface. This corresponds to inductive heating or wave-heating of the electrons respectively.

The selection for this multiphysics coupling node is locked, and corresponds to the intersection of the Magnetic Fields or Electromagnetic Waves, Frequency Domain and Plasma interfaces specified in the Coupled Interfaces section.