According to Rossi, getting it to the point of reliably running hot enough to make steam at turbine temperatures is a couple of years away. It would make a lot of sense to sell it as a heater in the meanwhile.
My guess is that as soon as you pull the plug on the heating elements, the “heat generation” stops.
Wouldn’t it make more sense for Rossi, rather than selling some really expensive water heaters, to actually complete his tech with the goal of power generation, and then realize huge commercial potential? Oh, wait—he can’t do that, because THE WHOLE THING IS A HUGE SCAM.
I've a feeling that the power generation capacity is always going to be just a year or so off.