[SunkenCiv]

Camper / motor home fridges at least used to run off bottle gas, which amused me in the 1970s, because I remember that Plato (in one of the dialogues) had made an analogy, "just as you can't get cold from heat...".

[Pontiac]

My grandparents’ refrigerator ran off of natural gas

Some Amish sects use natural gas or propane refrigerators.

Depending on the sect the refrigerator may be in the home or in an out building.

[Pontiac]

I remember that Plato (in one of the dialogues) had made an analogy, "just as you can't get cold from heat...".

The laws of thermodynamics say he is correct.

But I understand the humor.