My fridge on propane has a usual range of 32-40 degrees over night and day. A super hot day will send it up a little more. Running a fridge fan inside keeps it much more even, I recently discovered. This is with my thermostat knob about 9:30 position. Any higher and I freeze the stuff overnight. Of course, every fridge probably has a slightly different thermostat calibration. If you turn on 115V with propane, there should be no real effect, since the thermostat controls both and the extra heat during the cooling cycle should be wasted-- or the fridge is underdesigned. On 12V, the effect is to run the fridge constantly, since the thermostat doesn't control the 12V heater. Some have recommended running propane and 12V initially to speed cooling, but, again, I think the fridge design should be to have maximum cooling on any one of the three modes and so extra heat would be wasted. A fridge fan inside does certainly speed initial cooling, in my observations the last few months. Richard A Jones Boulder, Colorado |
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