I leave mine on overnight. I leave the lid ajar to lower the heat a bit even though mine pot has two temperature settings and I am using the lower temp setting. Also, mine has a plastic lid and it started to frost with the lid closed so I surmised the vapors were attacking the plastic. If you are worried about time hook up a timer. Also, with resin, I had the ankle of a flat figure disappear - another reason to leave the top open. So you have to be carefull with thin resin items. You may want to get a rheostat to plug the pot into if the temperature is way too hot. Try a thermometer or check the instruction booklet to see how high the one temperature setting yields. I have heard that inside some models there can be an adjustment or if you are handy add something like a rheostat or resistor to lower the voltage. Consider putting in a small wood block to raise the figure off the bottom where the most intense heat eminates, for a cooler environment for the figure. Oils dry at different temperatures depending on color and manufacturer, your thiinner, and how much oil you soak up before using your paint. I used a light box [cardboard at that] as per Shep Payne in his course and the bulb was only 75 watts or smaller, depending somewhat on the size of the box...but it works so maybe that would guide you on the crock pot temp. Hope that gives you some things to consider. Joe