It's been said on here and I concur that it could be several things but
operate on the principle that it's cheaper to check than buy. First if there
is no rime around the cylinder itself at the bottom, it is unlikely that the
cylinder is chilling down too low to vapourise. A 47Kg cylinder will
vapourise enough gas to supply 15Kw of energy, but it is dependent on the
wetted surface of the cylinder, so the lower the gas, the less wetted area,
less gas vapourises so just because you have liquid left in the cylinder
does not mean it will vapourise. If you have a small cylinder, 6/11Kg or
perhaps even 19Kg it may not supply enough vapour. Gas in cylinders is an
impure product and will contain a small amount of water, although a very
large company was found guilty of ballasting cylinders with water. It is
unlikely that the water is getting into the reg. It is more likely to be
water getting into the body of the reg, so you can fit the reg with the red
cap facing down to stop water ingress, in this position you can pour hot
water over it to thaw it out. Hot water from the tap won't harm it as long
as it doesn't get in the body.


Robin

"Bert W" wrote in message
...
Roger Moss wrote:
I have a propane bottle, kept outdoors, that feeds a gas hob and
Electrolux refrigerator. In sub-zero temperatures I get no pressure
indoors, but am unsure whether this is due to the regulator having
some water in it, which freezes and sticks it shut, or water in the
gas pipe itself (which should be impossible, if the bottles only
contain dry propane).

Has anyone had experience of this? Is there an easy way of testing
the regulator/servicing it/drying it out? I am tempted to put it in
a warm oven for a while but don't want to damage any rubber
components inside it.

A tiny help from Truma is called Ice-ex. It's a 12v heating element that
fits on the regulator. It will solve the problems that can occur around
(mostly some degrees above) zero degrees C.

--
Regards, Bert W
www.whattowcar.com