Propane verses Butane.

Discussion in 'Motorhome Chat' started by scottie, Mar 30, 2016.

  1. scottie

    scottie Funster

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    Hi everyone, any ideas please. I drive a van conversion that can only carry 2 * 4.5 kg butane, or 2* 3.9kg Propane, both bottle dimensions are the same, but missus informs me that butane weighs more, " ex chemist". I have always tended to just use the propane as it is better in colder weather, but my questions are;. Should I switch over to butane for the summer months, or just stay with the propane. I'm assuming the actual volume of gas is the same in each cylinder, just the weight difference being attributable to butane being heavier. I think I have just answered the question, but is it an item that anyone has looked at previously. The more modern van conversions now carry 2* 6kg propane, most of them located under the sink space which I currently have as cupboards only. Many thanks for your thoughts opinions.
     
  2. Reallyretired

    Reallyretired Funster

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    Propane produces slightly more energy per kg than butane, plus vaporises at lower temperatures. I would recommend using propane all the time.
     
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  3. Steve

    Steve Funster Life Member

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    But you should know that butane is more efficient than propane when used as fuel. If same volume of butane and propane is burned at temperature above freezing, butane will end up providing 12% more energy than propane. Thus, butane can be the preferred choice when it is available in adequate amounts since it is energy-efficient and also has an advantage of cheaper price.
    That is why butane regulators are 28bm and propane ones are 37mb you need more propane for the same amount of energy given. But propane more available and why change.
    Steve
     
    Last edited: Mar 30, 2016
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  4. JJ

    JJ Funster

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    Propane Rools, Okay...

    JJ :cool:
     
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  5. scotjimland

    scotjimland Funster Life Member

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    Life's too short... besides.. I have Gaslow bottles..

    Autogas is Propane.. ergo Propane is better .. Okay ...:cool:
     
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  6. mickyc

    mickyc Read Only Funster

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  7. maison

    maison Funster

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    Propane works summer and winter.

    Butane may not work in winter when temperatures are low, especially in the evenings and at night.

    It's a no brainer, surely. (Unless, of course, you are a summer only user or a snowbird).
     
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  8. campa cola

    campa cola Funster

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  9. scotjimland

    scotjimland Funster Life Member

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    yes it is.....

    your link is for Cepsa .. that is Spain.. AutoGas ...



    Autogas (no capital G) as sold in the UK is produced by Calor and is high purity PROPANE

    Technical Publication
    Calor Safety Data Sheet - Liquefied Propane Gas
    104800 V 8 07/11– Calor Liquefied Propane Gas Safety Data Sheet
    Page 1 of 9
    Published by the Safety, Health and Environment Department
    Data Sheet No 2 Revision 8 Replaces
    Revisions 03/00, 04/03, 08/05, 03/06,
    06/09, 02/10, 12/10
    This data sheet has been prepared in accordance with the requirements of Article
    31 of EU Regulation 1907/2006 (as amended) on the Registration, Evaluation,
    Authorisation and Restriction of Chemicals (REACH)
    1. Identification of the Substance or Preparation and of the supplier
    Identification of the substance orpreparation:
    Calor Liquefied Propane Gas including products
    marked as Calor Propane Calor Autogas, Calor Patio
    Gas & Calor is High Purity Propane


    https://www.calor.co.uk/media/wysiwyg/PDF/propane_safety_data_sheet.pdf
     
  10. campa cola

    campa cola Funster

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    So er.....what about the Thetford fridge, and running that on Spanish butane instead of a nice propane mix, do you know how it will react ????
     
  11. scotjimland

    scotjimland Funster Life Member

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    I've never had a problem, I used Spanish AutoGas for many months while traveling in the RV in Spain ..

    have you had a problem ?
     
  12. campa cola

    campa cola Funster

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    Not since I washed out the seawater from the Brittany ferries al fresco trip :Eeek:
     
  13. Munchie

    Munchie Funster Life Member

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    We have used auto gas in our gaslow system in UK, France, Portugal and Spain with no problems.
     
  14. SandraL

    SandraL Funster

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    We have found that spanish autogas with its higher proportion of butane causes our truma heater to fail due to lack of pressure in cooler weather. Not freezing or frosty, just when its about 5deg c or so. On these occasions cooker and fridge have continued to work as their demand for gas is lower than the heater. A kettle of warm water over the cylinder made it work for another 20 mins or so.
     
  15. Munchie

    Munchie Funster Life Member

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    Our heater worked fine.
     
  16. Don Quixote

    Don Quixote Funster

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    In 5 years never had a problem.........
     
  17. PeteH

    PeteH Funster

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    For over half a century, the "Given" word was that Butane, OK summer, but come Autumn? get yourself a Propane bottle or Mem-sahib will be complaining of feeling cold when the heater fails to ignite!!. So guys for the slight extra cost of the propane the continued silence is well worth it!.

    Pete
     
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  18. mickyc

    mickyc Read Only Funster

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    Well it would appear that the European LPG Association disagree with you, they seem to be under the impression that the term Autogas (without the capital) is a "blanket denomination" covering propane and butane, oh well what do they know!!

    Whilst it's obvious that colder countries are going to lean more to propane, the statement that "autgas is propane" is clearly Bunkum (with a capital B) (I tried to put a blobby out tongue emoticon here to demonstrate that I'm just winding Jim up but for some reason my emoticons are buggered)

    To answer the OP - Propane every time, or Autog(G)as if you're on refillables



    image.png

    http://www.aegpl.eu/media/81922/autogas roadmap 2013 final 2mb.pdf
     
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  19. scotjimland

    scotjimland Funster Life Member

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    not with me.. I quoted the Calor safety data sheet for Autogas.. perhaps you should alert Calor to their error :rolleyes:
     
    Last edited: Mar 30, 2016
  20. mickyc

    mickyc Read Only Funster

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    I didn't realise they were the only producers in the world, my mistake!
     
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