400 per cent of what? Doesn't anybody proofread before posting anymore?
Well, this thing is stoked with hot water and allegedly makes the water even hotter, producing a weak wet steam. Maybe they are claiming heat content of the water charge with respect to room temperature. Heat the hot water with 100 Joules, pour it in, and out comes 400 Joules in steam and hot water or something like that. But this ought to be spelled out, not left to guess.
"Output = 5X Input"
400 per cent of what? Doesn’t anybody proofread before posting anymore?
It’s not a proof read problem. It’s the terminology in LENR. Every science has its own language. In LENR the input is chemical energy and the output is unknown but presumably nuclear fusion occurring at low energy levels. So outputs are often quoted from 4 to 20 times the inputs, or COP 4-20.