Refrigerators for cabins and RVs can be LP gas or electrically-powered (ideally by solar). Collyn Rivers’ article outlines that feasible.

Refrigerators for cabins and RVs, Refrigerators for cabins and RVs

Engel 60 litres slide-out fridge is powered by two 100 watt solar modules and a 110 amp hour AGM battery. Pic: 

Cabins usually have roof space for the 200-300 watts solar capacity required. Also feasible are portable solar modules placed outside when you use the cabin.  RVs less available space for solar modules. Buy only the efficient monocrystalline modules.

Another and effective way you can do it is via a 12 volt (100 amp hour) battery. You can charge it via a 230 volt battery charger powered by a Honda/Yamaha inverter/generator. You will need to run the generator for only three or so hours a day.

Refrigerators for cabins and RVs – generator back-up

Generator back-up works well for refrigerators in RVs. See article Generators for cabins and RVs.

Twelve volt electric fridges vary in efficiency. Buy only those known globally such as Engel, Waeco etc. Avoid the ultra-cheap look-alikes. Any saving in price is offset by more energy needed to run them.

To cool efficiently you must install them correctly. Sadly, few do. Cold ate must be able to passing over and through their cooling fins. That now-heated air must be able to escape to the outside. A few fridges have metal sides and top that dissipate the heat. In addition, 12 volt fridges have ample-sized connecting cable. Very few have. Our books explain why – and what sizes to use.

Refrigerators for cabins and RVs – three-way operation

Consider too, a Dometic three-way fridge in its LP gas mode.This works well for the smaller RVs, moreover their energy draw is too high for solar. Their major benefit is that there will adequate solar for other purposes!

Correctly installing fridges is not hard for you to do. It is not however obvious. Our books Solar That Really Works! and Caravan & Motorhome Electrics explains all.