I don't know why he wants to go back to March 29, and not, for example, the Oct 5 (was it?) Heat Exchanger version, and to use steam rather than water. Also, Rossi only guarantees COP=6, not 8. K&E would be fine to supervise ... but I think I'd go with recommendations from Jed (ISTR) to hire an HVAC company to certify the tests with callibrated equipment, etc etc.
For a short 5hour test you must minimise the size of the reaction vessel to eliminate any possibility of chemical or stored heat sources, so you need to use a 'naked' ecat. Given all of the complaints and commentaries on Rossi's calorimetry I am pretty sure that any tester now would go into the test with their eyes wide open and a big check list of things to look at.
