No, read the report (before spouting off.) The measuring equipment was not supplied by the inventor. The test was partly funded by the Swedish energy research consortium, Elforsk. The inventor may have had an opportunity to swap out the fuel--but it was running continously at 1100- then 14000C, so it would have difficult to do without causing a blip in the temperature data. The reactor was also a welded closed system and was cut open at the end of the 32 days with all team members present, including Rossi. Yes, maybe he pulled a sleight of hand trick at that moment.. but that doesn't make much sense if it was already agreed that the reaction was beyond chemical.... and could not have happened, even if its entire weight was made out of gasoline, Lithium ion batteries, or TNT.