A recent dialog of Andrea Rossi with one of his kibitzes (only the relevant part):
Do you plan to increase the COP in the near future? Andrea Rossi May 1st, 2012 at 10:54 AM No, I do not think it will be possible to increase the COP. A.R. There are two possibilities; a) if this is not true, then Rossi will increase COP about this low value of 6 (2 in money in/money out) and that's OK; B) if it is true, then he has problems with development and probably control and he needs good engineers as those of his competition. -- Dr. Peter Gluck Cluj, Romania http://egooutpeters.blogspot.com
