Propane/Butane - cold weather

Hmmm, still think I'll swap to propane - the last thing I want to do when I wake up on a cold, frosty morning fantasizing about a cup of tea in bed is to drag my clothes on and go outside in that cold to muck about with buckets of sea water - perhaps I'm just getting soft!

You don't have to, just pee over them, that works quite well (shan't tell you how I know). :eek:
 
As mentioned before, why not just stay with Propane as it will work in any climate. I got fed up switching from Butane to Propane in caravans and a mobile home I once had, especially when I forgot to buy Propane. I have heard that lagging the bottle with polystyrene helps, but I have never tried this myself. Anyway, I have one of those suitcase type stoves in my boat which is almost useless when the temperature drops, so I stick the gas canister(s) in my jacket to warm them up a bit before I use them. I use a Coleman Dual Fuel stove when the temperature drops.
 
As mentioned before, why not just stay with Propane as it will work in any climate. .

Availability - particularly in certain sizes. Propane in the 3.9kg size (same bottle as the common 4.5kg butane) is very rarely available in marinas. 6kg propane is easier to find, but 7kg butane is still much more prevalent. Once you get up to the 13kg size propane is much easier to find!

Above relates to southern England .... I guess in Scotland propane is essential all year round :D:D
 
. I have heard that lagging the bottle with polystyrene helps, but I have never tried this myself. .

It could make matters worse in marginal conditions. The liquid requires heat to vaporise. It gets this heat from its surroundings. If you insulate the bottle it cannot get this heat from the surroundings with the result that its own temperature will fall as heat is used to vaporise the gas. Eventually the temperature will fall to the point where vaporisation ceases.
 
It could make matters worse in marginal conditions. The liquid requires heat to vaporise. It gets this heat from its surroundings. If you insulate the bottle it cannot get this heat from the surroundings with the result that its own temperature will fall as heat is used to vaporise the gas. Eventually the temperature will fall to the point where vaporisation ceases.

Never gave that much thought til now, Maybe the bloke was getting confused with a hot water / boiler tank with the polystyrene keeping the heat in. And as you say, the polystyrene would keep the cold in
 
:D
Availability - particularly in certain sizes. Propane in the 3.9kg size (same bottle as the common 4.5kg butane) is very rarely available in marinas. 6kg propane is easier to find, but 7kg butane is still much more prevalent. Once you get up to the 13kg size propane is much easier to find!

Above relates to southern England .... I guess in Scotland propane is essential all year round :D:D

:D:D Not that bad really, if it gets below -20 we tend to put on a sweater or close a window :D:D
 
I could not use my gas cooker early mornings in March this year because it was cold enough to make the butane gas unable to flow. The outside temperature was approximately 5 degrees; I will consider propane for next year.
 
Slight thread drift, my 4 ring gas hob left black soot marks on pans and griddle. Spoke to Socal who recommended changing to Propane - problem solved.:)
 
Apparently butane is more energy dense, ie more joules/ltr (or kg, I never understood why bottle gas is sold in kg and autogas for vehicles in ltrs)

Go for propane, blue bottles don't work below zero C. A blue bottle in a locker will still need warming by ambient air as it chills in use, so unless its being actively warmed by the boat's heating system, it will quickly run out of puff on a frosty day.

If your boat only takes camping gaz cylinders, lots of threads here about refilling them with propane for winter use, though filling one for <3 pounds may give a warm glow all of its own!

Nick

From old family business days more than 50 years ago, cylinders held either 32lbs of butane or 28lbs of propane.
 
Slight thread drift, my 4 ring gas hob left black soot marks on pans and griddle. Spoke to Socal who recommended changing to Propane - problem solved.:)

Do you have one of the new 30mb 'universal' regulators? ... or did you (as I suspect) change to a 37mb propane regulator?. The symptoms you describe sound like a classic case of under aeration due to too low pressure for the size of jet fitted. (In other words the cooker was designed for 37mb).
 
Do you have one of the new 30mb 'universal' regulators? ... or did you (as I suspect) change to a 37mb propane regulator?. The symptoms you describe sound like a classic case of under aeration due to too low pressure for the size of jet fitted. (In other words the cooker was designed for 37mb).

Or simply because on a volume for volume basis butane requires about 30% more air for combustion than propane.
 
Appliances in the past badge'd Propane and Butane tended to come from the factory "adjusted" for propane and when used with butane could have a softer flame and yellow tip.
But if the appliance was set for butane and you used propane this could result in a very sharp flame that was not to stable, was hard to turn down without it going out and would be a bit noisy.
So the lesser of 2 evils was to make everything perform well on propane.
Most newer appliances are not as sensitive and I don't know of any that have any adjustment to the airation.
Other than availability I can't see why anyone in this climate would use butane and propane usually works out cheaper, don't tell my boss I said that as I work for Calor. :rolleyes:
 
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