See
http://lenr-canr.org/RossiData/Higgins%20Oct%206%2027kWreactorDiagram4.png
a) Why no bottom heat exchanger fins?
Rossi said a long time ago that the Gamma thermalization was partly in the lead shielding. In the original tubular ecats the lead was probably in contact with the copper pipe. I would expect the bottom lead to need fins. (I'd put them back, with a "?") Unless .... see comment c)
b) Lead should surely surround the wafer.
c) Rossi has said that the 3 cores are in SERIES, and then the fat-cats are connected in parallel. This would imply that water is injected into the wafer, not the tank, and then goes through three wafers.
d) There IS a 3-bar pressure relief valve at the hot input to the heat exchanger. The 1-bar should be marked "?"
