I got confirmation from an observer that Lewan's photo and Rossi's description accurately describe the inside.
http://www.nyteknik.se/incoming/article3284879.ece/BINARY/original/DSC_0089_600.jpg
The 20x20x4 wafer is mounted at the center of the box, and has 39 heat-sinks pointing down (to boil water) and 39 up (to heat steam).
All three eCats (maybe 20x20x1) fit in one wafer, which includes the shielding -- lead and ceramics.
Andrea Rossi
October 11th, 2011 at 12:41 PM
Dear Gunnar Lindberg:
All the box containing the reactor is filled with water. The reactor wafer is cm 20 x 20 x 4 (external dimensions), and to it are welded all the steel wings necessary to exchange all the heat produced inside the reactor. When we disassembled the E-Cat all the attendants have seen that all the box around the reactor is just a water box, filled of steel wings and water. The water had been taken off, after the cooling, so with a torchlight it has been easy to observe that all the box outside the reactor is a water tank. The water enters from the bottom of the box, evaporates and goes out as steam from the top of the box. Therefore is absolutely impossible to insert any fuel, because it could be mixed with the water, and obviously could not burn. There is not air inside, just water and steam. As for the reactor, it is tight and waterproof. The volume free for the water is about 30 liters, so that to fill up it are necessary about 2 hours ( the pump of the primary circuit pumps about 15 liters per hour), but, as a matter of fact, the water begins to evaporate before the box is full of water, so usually the “Effect” of the reactor starts before 2 hours.
Warm Regards,
A.R.
(So it's definitely more of a kettle boiler than a tube boiler.)
