To my mind... old propane refrigerators are fire bombs.
Norcold and Dometic have run countless recalls and even recalls of the recalls. And the bleepin' things keep blowing up.
Vibration and heat-cycles eventually crack a pipe and the ammonium mixes with the propane-flame and up she goes.
I spent a couple millions miles on the highway driving trucks, and I noticed all the burned RVs sitting along the road.
In the cases where the fire had been put out quickly, I could often see where it had begun -- at the fridge, as this
random interweb-photo illustrates.
(A photo of the inside showed it to be a solid black charcoal chamber.)
Let's be safe out there (and all that jazz
In related news... to confirm something that was mentioned earlier....
I once tested a three-way (propane) fridge on a 12 volt battery overnight, and then I had to give the battery a nice funeral,
because it refused to recover from 0.000 Volts.
The 12 volt mode is for driving, assuming you have an adequate alternator.