I've run my stove in very cold conditions. I've never even though of the
propane lines freezing up. I don't think the gas is flowing through them
rapidly enough if you're just using the stove, fridge, or propex to cause it
to chill down on its own due to expansion. I think if you had a leak, then
yes. But I believe the propane has to REALLY flow fast to do that much of a
cooling effect.
So, you'd only really be subjected to ambiant temperature of the air.

A propane torch would probably classify as that "moving alot of propane
REALLY fast" situation that would cause it's own cooling.

-Craig
'85GL turned WESTY
BOSTIG in the back
'87 SUNROOF Syncro

On Mon, Nov 8, 2010 at 8:57 PM, David Beierl <dbeierl@attglobal.net> wrote:

> At 05:41 PM 11/8/2010  -0800, Alistair Bell wrote:
>
>> Karl, have you had any issues with gas lines freezing when using
>> propex in sub zero temps?
>>
>
> I've had a propane torch go out in my hands at -20F.  Ended up
> lighting a pan of charcoal and putting that under the oil pan (Saab
> 96 which never needed it again once it got the proper size of battery).
>
> Yrs,
> D
>