I bought and use a triclamp element adapter from brewershardware.com on both my HLT and BK. I'm using a short ferrule welded onto each kettle and there's just enough room to put the clamp on and tighten the clamp nut.
I was just curious if you guys noticed the body of the element adapter (where are the wires feed into and the element is screwed into) getting quite hot during operation. I don't see how yours wouldn't be if you're using the same design as me, since the element will heat the water, the water will heat the kettle walls and transfer that heat to the clamp and element adapters on the outside. The big screw on part of the element adapter is not hot (mostly cool to warm) but the cylindrical body of the element adapter is probably over 100F.
Is this something to be concerned about? At this point I've only done a water test and have my first brew scheduled for next week on the new electric system!
Regards,
Julian