On Tue, 19 Nov 2019 14:28:27 -0000, NY wrote:

You don't change the cylinders: you *must* have them changed by Calor or
a Calor-approved agent.

So caravaners, boat owners, outside cateres, etc don't change their
cylinders? ********.

The only slight "gotcha" is that the propane (orange cylinder) POL
connector is a left hand thread.

--
Cheers
Dave.