Andrea Rossi provided a more clear distinction concerning the capabilities of the Hot Cat. A poster to Rossi’s Journal of Nuclear Physics asked him about the difference between the actual temperature the unit reaches, and the amount of power it generates. The poster used a very good analogy:
“The power output is not related to temperature in any simple manner. Consider a simple sparkler (firework) has a tip temperature in excess of 1200 C, but is certainly nowhere near 10kW output.”
This is partly to do with the sustainability issue that has always surrounded LENR and cold fusion. Sure, you may be able to get a spike of high temperature, but can you sustain that spike long enough to get any benefit from it? Not only have scientists tried to sustain the reaction, but they have striven to sustain the temperature created.
Rossi’s answer is that the Hot Cat produces power of 10kW. The temperature, when it reaches the heat exchanger, is 1000 to 1200 C. Those are stable, sustained numbers, verified now by two independent observers.