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Propane Tanks N Cold weather

PostPosted: Tue Feb 03, 2009 11:36 pm
by fpoole
I just came back from a Camping weekend and have one of those LP Fire pits. Using a Propane bottle for the fuel and it being cold outside, apx 34F the tank would freeze up. More than several times, the flame would "Flame out". If I shook the bottle, I could re-ignite it and it'd work for little longer, then do the same. Several times, then the tank would be empty.

I thought at first it was just cause it was running low, but the time it took to completely run out was a fairly long time, not like it was the last drop of propane.

I thought it could be due to the ice/freezing point on the bottle and found that if I put the tank in little rubber dish wash bucket and then poured hot water over it, it would "Flame UP" again and then die down.

So my question is.
Does it flame out due to the coldness, freezing on the side of the bottle which indicates it's cold. (actually sticks to the ground and also forms and ice ring around the bottom) or just that it might be low on Propane and needs to be "Shaken, not stirred..." like Bond, to I guess, expand the Propane??

Is there any solution??? for cold weather propane bottles???
thanks..

http://www.poolesweb.com/gallery/eagles ... s-1037.jpg

PostPosted: Wed Feb 04, 2009 2:48 pm
by Steve_Cox
Propane boiling point is minus 44 degrees F. But at lower ambient temperatures it converts from liquid to gas at a much slower rate than at higher temperatures. So, you would "run out of gas" because of the volume you were using was greater than the conversion from liquid to gas. That's why when you pour hot water on the bottle you get more gas.

Just a guess on my part....8)

PostPosted: Wed Feb 04, 2009 3:31 pm
by fpoole
Great, thank you...
That seems to be what was happening, just wondering if anyone had "The Cure" heheh...

I ended up with the wash tub and poring Hot water, but got to be a PITA... maybe just put it in the fire itself... that should do it...
just kidding, kids don't do this at home...

Thanks for the heads up...

PostPosted: Wed Feb 04, 2009 3:43 pm
by Joanne
Freezing propane bottles pushed me back to white gas stoves. I camp in cold weather and got tired of not being able to use both burners without the flames going out. I have a newer white gas stove I'm using, but with the vintage equipment excitement I may restore my Dad's old stove and use it.

Maybe we need to design an insulated sleeve to go around the bottles so the ambient temp doesn't effect them so much. :thinking: Or just use the white gas stove. (Right Doug?)

Joanne

PostPosted: Wed Feb 04, 2009 4:24 pm
by fpoole
Yah, I used to use the White gas in Mountineering for the same reasons...

don't believe a sleeve will work as the bottle itself brings on the frost so it might just keep the cold in.. maybe a heating pad or some chem-heats (just thinking of the top of my head here). some sort of combo sleeve and pads might work, but boiling water might too... or do the Summer solution, wait for it... heheh..

PostPosted: Thu Feb 05, 2009 12:17 am
by Dark Horse
I run into frozen Valves/tanks when running a torch for hot glass work, only real solutions with propane, are to go with a larger tank Or Daisy chain the smaller ones.

PostPosted: Thu Feb 05, 2009 12:24 am
by fpoole
Dark Horse wrote:I run into frozen Valves/tanks when running a torch for hot glass work, only real solutions with propane, are to go with a larger tank Or Daisy chain the smaller ones.


Ok, then a 20lb'er is the answer and I'm liking the idea of a collar wrap with the chem-heat packs... might be enough to keep the tank from frosting... maybe about 4 of them, Duct Taped if nothing else... heheh..hmmm.. stay tuned..

Thanks for the info..

PostPosted: Fri Apr 03, 2009 11:22 pm
by Mukilteo
deleted

PostPosted: Sat Apr 04, 2009 8:55 am
by kirkman
OR you could just build a real fire! :lol: :campfire: :lol: Sorry I could not resist. 8) :lol:

PostPosted: Sat Apr 04, 2009 9:11 am
by fpoole
kirkman wrote:OR you could just build a real fire! :lol: :campfire: :lol: Sorry I could not resist. 8) :lol:


Yah, LOL, the problem is when they, Sites, don't allow "Real Fires" which brought about the whole propane "Artificial Fire" thing..

Also, it's real nice to have one in the kitchen area when it's raining up here... no smoke, easy to start and turn off and movable.

While l like "Real Fires' like the rest of them, This turns out to be a good alternative. :thumbsup:

Image

PostPosted: Sun Apr 05, 2009 8:45 am
by kirkman
fpool.... I thought that was the case but I just had too! You left your self wide open for picking! :lol:

PostPosted: Mon Apr 06, 2009 9:33 am
by Dale M.
Dark Horse wrote:I run into frozen Valves/tanks when running a torch for hot glass work, only real solutions with propane, are to go with a larger tank Or Daisy chain the smaller ones.


Aaah... Another lamp worker....

Got any good lampwork web sites to share?

Dale

PostPosted: Mon Apr 06, 2009 9:37 am
by Dale M.
Another take on freeze up solution is just plain big pan/pail/bucket of water to "sink" the cold from tank and into surrounding atmosphere...

Whole object is to keep tank warm enough for enough liquid to convert to gas so it can be drawn off to operate appliance...

Dale

PostPosted: Mon Apr 06, 2009 10:36 am
by fpoole
..Another take on freeze up solution is just plain big pan/pail/bucket of water to "sink" the cold from tank and into surrounding atmosphere...


Yea, I tried that in the colder weather. Froze the bottom ring and an ice ring around the bottle. Have to keep pouring HOT water to keep it from freezing. Probably easier to just put the tank in the fire and that should keep it warm.. (Just jokig :twisted: of course... )

PostPosted: Mon Apr 06, 2009 11:13 am
by Miriam C.
What your propane bottle needs is it's own insulated, off the ground house. :thumbsup: or TD on wheels. 8)