I find it a huge waste of time waiting for the crock pot to heat up.
Set on high it tends to boil over and I think poses a greater risk
than just leaving it on all the time, day and night, on low. I want
to avoid forgetting that I left it on high and boiling it dry.
Solution: I put mine on a timer so it comes on a hour before I
usually go to work. Always hot when I need it. Turns itself off at
the end of the day.
I have my ultrasonic on the light circuit. Does not take as long to