wildebus
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My Gas goes on and off as demand changes as mentioned. There is something to be said for a constant flame and no complicated electronics though!Dometic say you can expect some temperature regulation on mains and gas but not 12v.
As I said earlier you can hear a thermostat click run-out when turning my old 'mechanical' fridge temp dial so presumably there would be some cycling.
The current on 12v is far too high to put through a thermostat and if I remember correctly the element wattage is lower so constant duty is used.
I can see how a capillary bulb could partially close the gas supply and reduce cooling effort.
On an electronically controlled fridge the gas could be turned off and relit I suppose.
I think mine just sets a constant flame dependent on the position of the temperature knob because after an extended time on gas I have to ease it off as the fridge gets too cold.
For electric, a little photo of the back ...
so meant to be 200W at 220V - which is why I am drawing 215W as my voltage is not 220V but 237V
and is 147W at 12V - so around 12.5A (to Thetfords credit, the cable they use for the 12V supply is very chunky - think it is 6mm2)