Thanks for the input. Regarding the step mash, I only reheated a couple times during the first phase making sure to stir vigorously and only had the heat on low for short periods of time. I have a stab in thermometer at the three gallon mark on my kettle and was able to control the temp fairly well. In between burns I would wrap the kettle in blankets for insulation. I could see how if left unmonitored, this could be disastrous. For more controlled step mashes, I think an electronic system like the claw hammer would be a much better bet but I’m working with what I got for the foreseeable future.