Electromagnetic heating equipment uses the principle of electromagnetic induction to convert electrical energy into magnetic thermal energy. The rectifier circuit in the controller converts the 50/60HZ AC voltage into DC voltage, and then the DC voltage is converted into a frequency of 20 through the control circuit. 25KHZ high-frequency AC voltage, high-speed changing current passing through the coil will generate a high-speed magnetic field. The magnetic field lines inside the magnetic field generate countless small eddy currents when cutting the metal container inside the ceramic tube, which makes the water in the metal container heat up at high speed by itself. To achieve the purpose of heating water quickly.