A lot of hot air in this thread!!
Propane 101-The basics
First off since the newer propane tank valves required since 2001 with the corresponding "ACME" thread pig tail the kind you turn by hand, shutdown when they detect a large flow.
Another point is on the older Casita
trailers the refrigerators were put in before the top half was added. To get one in or out afterwards requires removing the refrigeration section from the rear. The newer trailers have a larger back window that has to be removed to get a refrigerator
in or out and requires 4 workers.
It also appears that a lot of advocates of using 12volts have solar
panels that I believe the majority of owners don't.
Putting blue things or blocks of ice in a refrigerator
while traveling defeats the purpose of having a refrigerator in the first place.
The length of cable between my truck's battery to the refrigerator is over 50 feet, 25 feet alone to get to the rear of the truck. That's a long way also considering the various connections along the way to provide 10 or 15 amps at the refrigerator and don't forget the return or negative wire also.
Many if not most travel with the refrigerator on propane.
How about a poll with no comment or reason why or why not allowed?
If it prevented a hazard besides on boats, in underwater tunnels and when refueling I'm sure there would some federal or state regulation against it.
Just my two cents take it or leave it.