I seem to recall that the absorption fridge in our old VW camper had a fan w/thermostat on the heat sink on the back of the fridge. A common mod was to put a bigger fan on it to improve efficiency. (W/o looking it up, it might not have had an OEM fan, and the mod was to add one, details are fuzzy.)
So, depending on circumstances, the fridge might not be completely silent.
I seem to recall that the absorption fridge in our old VW camper had a fan w/thermostat on the heat sink on the back of the fridge. A common mod was to put a bigger fan on it to improve efficiency. (W/o looking it up, it might not have had an OEM fan, and the mod was to add one, details are fuzzy.)
So, depending on circumstances, the fridge might not be completely silent.