E 0.94 , 894.5 C ----> E 0.46 --> 1510 C ----> E 0.39 --> 1712 C ----> E 0.39 --> 1712 C
The coolest part of the device at the time of the above was 727.2 C ---- ... ----> ~1300 C , leading to a 'COP' of 4.0, ignoring that 3/5 of the device was greater than 850 C (to be conservative).
Rossi has $10M or so. You should ask him for money to further develop this interesting COP 4 device.