My guess is that the Aux is to pre heat the water flowing into the system and the other external clamp on heater is for "control". Put those two seem to be the only external electrical connections (other than the thermocouples)
Dennis C From: Jones Beene Sent: Wednesday, April 06, 2011 9:41 AM To: vortex-l@eskimo.com Subject: RE: [Vo]:Swedish physicists on the E-cat: "It's a nuclear reaction" / The used powder contains ten percent copper From: Stephen A. Lawrence Ø Ø Where are the electric fields that would cause electromigration? There are no fields in copper pipes as far as I know. In the photos I am looking at, from this page - one resistance heater labeled "auxiliary" goes directly into a copper pipe. You may need to blow up the image. Jones