Refrigerator Cooling, Propane vs. Electric

If you take a can of hair spray (don't use it myself as I don't have hair and my barber uses a 1 guard to keep me presentable) if you hold the nozzle down the can will become cold. The refrigeration principal uses a compressor to duh compress a a gas (freon). When that compressed gas goes through the system it releases cold air, and carries off warm air to the coils, and then it starts again. The 2 way rv fridge instead of delivering a cold source removes the heat through absorbing the heat and carrying the heat away from the unit (fridge) again through a coil. The rv fridge uses absorption of heat vs. Refrigeration in the conventional sense. If your not confused by now, I am.