I see absolutely no reason why the 10uF electrolytics on the thermistor circuits shouldn't be changed to ceramics such as Samsung CL21F106ZPFNNNE (Digi-Key 1276-3012-1-ND) 10uF 10V 0805 ceramics. (Keeping in mind the tradeoffs between physical package size, cost, and voltage rating for high-capacitance multilayer ceramics, 0805 10V is the sweet spot here. The voltage rating is high enough for thby LukeW - Controllers