On Sat, 24 Oct 2015 08:21:39 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

John B. fired this volley in
news
Err... doesn't propane boil at something like -43 (F)? How cold does
it get there in YouTube land?

Err.... at atmospheric pressure! Wanna just guess that the pressure in the
tank and torch inlet tube is higher than at atmospheric pressure?

You DID know that the propane in a tank is typically in a liquid state;
yes?

Lloyd

Yes, the vapor pressure at +50 (F) is ~100 psia. So?

And you close the valve... what is the pressure on any gas remaining
in the torch tube?
--
cheers,

John B.