Sorry for not getting back sooner but I was trying to upload a picture of my set up.
I brew in the basement, in and around the laundry and furnace room. And so, much of my set up has to be portable and be able to be stored.
I made my heatsticks. both of which can be plugged into a wall socket. For the controller, I adapted from an extra tool box I had lying around. I bought the regulator from Auber instruments. In the tool box, I cut notches on the side for the heatsink to slide onto. holes for the display and for the wall socket that the heat stick can plug into. Finally a hoe on the other side of the box for an extension cord to be pulled out and plugged into the wall. The regulator also has a temperature sensor that runs into the pot.
As I am cooling the wort, I unplug the extension and pull it into the box, wrap up the sensor, unplug the one heatstick from the box and clean it. Allow the heatsink to cool and place it into the box. Close the lid and place the tool box over by the bottle. Of course, I had also uplugged earlier the second heat stick and cleaned it also.
Sorry again about not having a picture but I will figure it out eventually.