Originally Posted By: Tjin
Nobody mentioned those cooler which are able to run of different power sources, you know the ones which are able to run on:
- 220 / 110V
- 12 V
- Gas (propane/butane)

Simple, not to expensive, lots of options and propane cylinders are simple to store and use.

(Do NOT use gas mode in enclosed area's)


I can not recommend these appliances for regular use whilst times are normal or in an emergency.
They use a great deal of energy. typically 150 watts continual in electric mode or a significant gas consumption.
They are basically absorption cycle gas fridges with the option of an electric heating element instead of the gas flame.

For keeping insulin or other perishables cold for a long time without utility service I see only two realistic options.
Either a very large and very well insulated container filled with ice that will take months to melt.

Or a high efficiency DC refrigerator and a battery bank charged by PV modules, that will work indefinitely until something breaks. If life depends on it then the equipment should be duplicated.