# Gas weights / volumes

Discussion in 'Tech/Mech General' started by Tony Hunt, Jan 16, 2010.

1. ### Tony HuntRead Only Funster

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Trying to work out How many ltrs of Autogas equals a 19.5kg propane bottle. Brains gone addled, help please

2. ### Kon tikiRead Only Funster

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Liquid Propane Weight

This site: http://www.pmak.org/public/propane_facts.html states the following:

The specific gravity of propane liquid is 0.504; water is 1.

Therefore 1 litre of propane weighs 0.504kg.
19.5 kg = 38.69 litres

Or do as I do work on the basis that 1Kg = 2 litres - then if you want to err on the safe side just take a litre off the end result.

Last edited: Jan 16, 2010
3. ### pappajohnFunsterLife Member

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but does that include the 20% expansion space

4. ### Tony HuntRead Only Funster

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So by my reckoning I paid 58p ltr for autogas yesterday at our local shell garage but last week I paid 20 quid for a 19.5kg bottle of propane from the builders merchants which equates to 52.6p ltr by the 2 for 1 formula which makes bottled Gas the clear favourite to use in my RV while Im fulltiming on site through the winter months.
Funny , I always thought Autogas was half the price.
Interesting.

5. ### BriseyFunsterLife Member

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Hi Tony

£20 for a 19.5 kg bottle is a good price. Our local Calor dealers sell the 6 kg bottles for anywhere between £17 - £21.
We use Autogas in our Gaslow system, our local BP garage is now selling it at 63.9p per litre.

6. ### TerryFunsterLife Member

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Hi Tony that is a very good price :thumb: a 12 kg bottle here costs £23 exchange or a 15 kg £25 exchange -- Now this surprised me ---the 12 kg & the 15 kg bottles are the exact same size only difference is in the weight-
terry

7. ### pappajohnFunsterLife Member

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just exchanged a 15kg calor butane (for the cabinet heater at home.)

£27 from the local BATA store.

less £17 for the bag of scrap copper cable at the local scrapyard...:thumb:

£10 for 15kg.....beat that.

dont forget the VAT difference......17.5% at the pumps(road gas).....5% for bottled.(domestic gas)

Last edited: Jan 16, 2010
8. ### SundownersFunsterLife Member

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Hi
What brand of propane do you use ??
I just paid £30 for 19.5 Calor ,it get cheaper as you get larger bottles (the 47Kg is half the price,-- per Kg-- of 13Kg
Nigel & Pamala

9. ### Tony HuntRead Only Funster

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I use Flo Gas mainly because I had a few of their empty bottles kicking around to exchange.
I think I paid round about £50 for a 47 kg just before christmas.