I did. Rossi didn't even have to use concentrated H2O2 to produce his "excess energy".
Orders of magnitude! Let's talk about not doing your home work. LOL!
Check your assumptions. Your calculations are in error by a factor of ~20.
Also, these data are from an experiment in which the possibility of introducing H2O2 is nil, as the coolant was drawn directly from the building water pipes.
I can admit the POSSIBILITY that a liquid chemical fake for those setups where the coolant was contained in a tank, but even there the likelihood is very low.
Kevmo is correct in that you MUST consider the specific experimental setup to draw proper conclusions. Simply doing an enthalpy calculation for a single experiment and trying to use that to draw conclusions for ALL experiments is ridiculous.