Comment by cpcallen

If you don't want to use electricity, why not just use a gas fridge? No electricity, not moving mechanical parts (except possibly a gas valve, if you want to get all fancy and have it thermostatically controlled) - just a bunch of fluids flowing around a series of interlinked pipes.

The best explanation I've ever read about how they work: https://web.archive.org/web/20051128061124/http://www.cam.ne...