As we know the ether exist and goes into different parts of mattery. Like any devices or usability stuff, this means also a soldered board of a device, especially when there is stable DC voltage into it - like for example internal mass on the reverse part of PCB, OK? So iones go into it, giving the power there, this can also boost Kapanadze resonance. For some of the electrician this is easy...
But not well taught in higher schools. Any kind of this knowledge we need to gather in alternative ways. OK?
So, the possibilities for Free Energy is easy. Only what we need are the parts manufacturily done by factories. This includes cables, fuses or relays even. So all and all the possibility to make a closed loop system for a known circuit is close for us.
In winter time the gain of such devices is low. Given heat is lost for example. Only low percentage of a heat go back into parts. And heat becomes often from normal standard currents. And human as e understand needs heat for its life. In summer time this looks different... The Heat looks kinda a fail for us. But most of a year time normal temeperatures are available. OK?
All and all...
dxer