The electronics

The electrical circuit is very simple.

We used the oven temperature control as the high side (170-220 Deg.) the hot water temperature control will be used to keep it at 90 Deg. for cheese. We used a three way switch to go between them. The ground wire runs to the element and the tree way is set up for one leg to wire to the oven control and the other leg to the hot water control then the hot goes to the other side of the element. The oven control allows us to turn it off but the hot water side would be hot if the three way is pluged in.