Though if there's a freeze, might it be a problem?
Propane shrinks in the cold and expands in the heat. The tanks have
a safety valve. If the propane EXPANDS and gets “too big for its
brithches” (over flows) the safety valve ALLOWS the propane to spew
out. Kind of like the safety valve on a steamer, if you ever had that
go off on you.
Outside “may” not be a problem, but I have not stored them outside
nor have an idea what might happen to the regulator if there is a
But one thing I wanted to let you folks know is this (found it out
myself): If you have the tank filled IN THE COLD, the propane will
shrink and take up less room. So if the dealer fills it near the top,
in the cold, then when you bring the tank into the store, normal room
temperature will make the propane expand and the safety valve might
release the propane.
Had that happen ONCE, room started to fill up with propane an hour
after we got it filled. Nothing happened; we took it outdoors and let
it do its thing.
Have no thought of what would have happened if we had brought it in
30 minutes before we closed the store and it started to leak at 7pm.
After all of these years, the thought comes to my mind: