LPG Question?

Jun 20, 2005
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My half full 15 kgs Calor gas butane heater ,in my very cold workshop , works for a bit and then goes out. It will run on low setting but on high after a few minutes flames out. The other two full cylinders I have work perfectly.
My local dealer tells me the gas in the partial used cylinder is”freezing” stopping the flow of gas to the burner. He says it is too cold?
The ambient temperature in the workshop is circa 30 degs C.
Any thoughts please chaps?
 
Nov 6, 2005
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"very cold workshop" - "workshop is circa 30 degs C" - is there a contradiction there, or a typo?

Butane should work fine at 30 C - but not at 3 C
 
Nov 16, 2015
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From the old grey cells Butanes boiling point is 31 F. So I think that's what you mean, just changed my gas fire over to a propane bottle and regulator for the same reason.
 
Nov 16, 2015
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Horrible vision, DD in his Christmas, Mankini trying to get his fire to flash up in his workshop.🤔🤔
 

JTQ

May 7, 2005
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The liquid in the bottle self-chills as it evaporates, cooling it even further below the ambient around it. The faster the gas is drawn the greater the chilling, the lower quantity of liquid left, the less mass of liquid to cool so again the quicker things get too cold.
I think I would simply find somewhere warmer to spend your time, but I can understand with the World Cup saturation going on its tempting to escape away from it to the shed.;)
 
Aug 30, 2018
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JTQ’s explanation is spot on. Look at my avatar and you can see frost on the bottle in use. As this was propane it doesn’t matter and the van stayed warm. It would be a different story with a butane cylinder, as the op found out.
 
Nov 11, 2009
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JTQ’s explanation is spot on. Look at my avatar and you can see frost on the bottle in use. As this was propane it doesn’t matter and the van stayed warm. It would be a different story with a butane cylinder, as the op found out.
Makes for a good level indicator too 🙂 Given the right atmospherics.
 
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