Description
The prototype manages to heat water without having direct electrical contact with the power source, thus guaranteeing safe isolation for users. The efficiency of the system is achieved thanks to the simulation and calibration of electrical parameters that allow to obtain an operation in electic resonance, thus canceling the reactance and only allowing the real component of the impedance (conventional resistance)
Patent for sale
Diego Lopez de Calatayud

Electrical resonance graph 
Heat energy as a function of time 
Thermal equilibrium 
Temperature as a function of time