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Merry Xmas to one and all,   We are off to North Yorkshire for New Year, Dose anyone know how cold dose it have to get before we have to switch to Propane gas ? Thanks for any info.

 Stu

hi see... www.calor.co.uk for more information.FAQ.

What is the difference between propane and butane? Is one more suitable than the other for particular applications?

Propane (red and green cylinders) has a lower boiling point than butane (blue cylinders) and is stored at a higher pressure so it is more suited for storage outside. Butane’s boiling point (conversion from liquid to gas) is around 0˚C so in colder conditions around this temperature it will not work.

What is the operating temperature range for each of the gases?

BS 5482 part 1 states: "For Butane cylinders, satisfactory service might not be obtained at a temperature of less than 10°C; the most suitable temperature range is from 13 to 30°C. For temperatures less than 13°C, the use of propane should be considered."

Stu

Like Paul we use Propane all year round. Not sure I notice any difference between the two but Butane, I understand, is supposed to have a higher calorific value.

David

Thanks to all the above for your remarks, I've taken that on-board, we have been away twice before at new year and never had a problem with butane, but with all the recent threads on the subject and the colder weather that is forcast I thought I would ask the question. Once again many thanks.

Stu

There has been a change in the pressure of Butane this year so it will be interesting to see if it makes a diference at low temps. Usually find problems start with Butane from 4 deg C downwards. Starts with poor flame etc.

Let us know how you get on.

We've changed to Propane all the time too.  The container's slightly smaller but it's more economical.  I prefer it.

Nora

Quote: Originally posted by sacman on 27/12/2005

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There has been a change in the pressure of Butane this year so it will be interesting to see if it makes a diference at low temps. Usually find problems start with Butane from 4 deg C downwards. Starts with poor flame etc.

Let us know how you get on.

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Won't make any difference tthe regulator allows the gass to be delivered at a slightly higher pressure but if your liquid  is to cold to change into a gass which starts at about 4 deg as you say then no matter how high a delivery your reg is if there's no gass it can't deliver it