The camera peltier cooler plugs into a constant 12V socket on my
1000 oaks dew heater controller (powered by
this 12v power supply), whilst the camera's nichrome dew heater simply plugs into one of the four dew heater control sockets.
Unfortunately the dew heater that I fitted to the CMOS sensor is not super effective at controlling dew or ice when operating at a temperature set point significantly below the ambient dew point. To compensate, I settled on a regulated temperature of 10 C, as this is typically above the ambient dew point but still much lower than the operating temperature of the CMOS during long exposure imaging.