"Jose" wrote in message
...
no one has mentioned using
an O2 system from a home healthcare type source.
It's the same 02, the same bottles.

IN ground school I was taught that medical O2 has water in it which can
freeze in the lines at high altitudes and low pressures. I've never used
O2 so have no firsthand experience.
obvious change in the address.

Wow. I normally don't keep my cabin that cold. My wife would complain long
before water would freeze.