There is much excitement about the description of the Hot E-Cat and picture posted by Colonel Fioravanti. The unit being tested has areas that are hotter than others. In addition, the construction of the unit appears to have temperature variations in it, as well, appearing to be cooler toward the edges. It could be possible that a fusor device could be used to equalize the temperature within the E-Cat, producing even more energy. Fusors that have been built in the past use a plasma field to keep the off of the walls of the units. This not only keeps the unit evenly heated, it preserves the fuel within the reaction, keeping it from overheating and ruining the nickel powder.
However, Rossi seems to be unfazed by concerns about cooler areas in his invention. This is because, after all, it is producing a steady supply of 1200 degree C for extended periods of time, making it a revolutionary tool for the production of energy. He, himself, has said that the Stirling engine is now a possibility for use in conjunction with his E-Cats, and, potentially, with the Siemens turbines.