NickRobinson
Well-Known Member
They are pressure certified the same, stamped on the skirt. Discussed some time ago here, haven't got the number to hand but fine.
Camping Gaz refill whip - Parts
- Thread starter G12
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Steve_N
Well-Known Member
Very good. Not sure I'd trust that wee 'ball-bearing in a rubber seat' valve myself but each to his own.
NickRobinson
Well-Known Member
As you say, each to his own- and its all academic, none of us would ever fill bottles....
VicMallows
Well-Known Member
Quite right!(On a particular caravan forum which I follow, I am certain that even the question would have been deleted in seconds by the ever-present moderators
).
VicS
Well-Known Member
The only pressure I can see stamped on a 907 cylinder is " PD 10kg/cm²" .( equal to 9.8 bar)
The pressure of propane could become uncomfortably close to that on a warm summer's day , even in the UK, and exceed it if the bottle was left/placed in the sun
I would also consider what NIET GESCHIKT V PROPAAN might mean
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KAL
Well-Known Member
For those living near a Trago Mills, the 13kg butane cylinders are available for £19.99.
G12
Well-Known Member
Now that's not as painful as a gaz cylinder and more than twice as much gas.... I have a Trago close by 
Steve_N
Well-Known Member
Now that's not as painful as a gaz cylinder and more than twice as much gas.... I have a Trago close by
Almost 5 times as much gas: a Camping Gaz 907 holds 2.7kg of butane while a Calor 13kg holds... 13kg.
KAL
Well-Known Member
Just speaking theoretically of course, as refilling a 907 safely for under £4 from a larger cylinder is obviously not a good idea at all, you never get quite all of the gas out of the 13kg cylinder, as the pressure falls off markedly after a few fills.
Boyle's law says that if you pour a little boiling water over the 13kg cylinder occasionally, the pressure in the cylinder increases, permitting the quicker flow of gas into the 907, (or so I'm told)!
Nevertheless, a derivation of Boyle's law (Xip Bo Ting's law) states that the time taken for the 907 to fill up increases in direct proportion to the number of fills previously undertaken from the original 13kg cylinder. I think the formula goes something like:
Final fill time (mins) = [original fill time (mins)] x (1 + no. of previous fills)
...or so I'm told...
FulmarJeddo
Well-Known Member
Sorry to wake this one up again. With the camping Gaz fitting no longer available from BES I searched around for somewhere that I could get all the parts and hopefully save on the postage. I found Hamilton's in Belfast that appeared to have all the parts. When they turned up, both the camping Gaz and the calor adaptor said had the L/H 21.8 male thread and I couldn't connect both together. After a very thorough search it seems it is only BES that sell the Calor adaptor with the W20 thread. The Pig tail hoses do not seem to be available from anywhere with a L/H 21.8 thread on both ends. I did find an adaptor 1/2 BSP to M20 that I think would have converted the Calor adaptor, but was only slightly cheaper than the Calor adaptor from BES. So rather than saving on postage I ended up buying an extra Calor adaptor. I should have followed the advice in this thread and bought the parts from BES and the Camping Gaz adaptor elsewhere.
VicMallows
Well-Known Member
You could use two Calor pigtails with the M20 ends joined together with a nipple.
VicS
Well-Known Member
I think these three parts from Will Hayward will do the trick
- Camping gaz to M20 .......... http://www.whayward.com/Details.cfm?ProdID=528
- 21.8mm LH to M20 ........... http://www.whayward.com/Details.cfm?ProdID=530
- M20 to M20 hose ............. http://www.whayward.com/Details.cfm?ProdID=535
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nigelmercier
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I think you are right, but you can buy a lot of Camping Gaz for £60.
NickRobinson
Well-Known Member
c.Two refills!
Here's the bits for < 22 pounds
http://www.ebay.co.uk/itm/CARAVAN-M...692014?hash=item2109e177ee:g:udMAAOSw2s1UsoRi
http://www.ebay.co.uk/itm/CAMPING-G...291462?hash=item4af3d34e06:g:alAAAOSwAYtWQ0oN
Continuing the hypotheticals- the pigtail comes with a RH thread.Sacrificing an old regulator provides a LH nut to replace it. (Does need the crimped HP pipe removing to thread it on) ..... Apparently...
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VicS
Well-Known Member
£60 for bits and pieces and you also have to buy the gas in larger cylinders
But you miss the point.
Its all about not paying for the Camping Gaz refills (around £30 for a 907 I believe)
nigelmercier
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Really! Last time I bought some it was €20, and that was at my marina.
VicS
Well-Known Member
One link is to a propane hose but I suppose you can cut the POL connector off and fudge something together with bits of an old regulator
The other link is to a CG cyl adapter to butane (21.8mm LH ) thread so yud have to do the same mod with the other end of the hose to get butane nuts both ends
- The first hose on this page https://www.bes.co.uk/products/067.asp
- and the camping gas cylinder valve previously linked to http://www.whayward.com/Details.cfm?ProdID=528
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Momac
Well-Known Member
Having changed boats in 2014 we get through perhaps three 907’s a year as the chief officer likes to use the oven . And I quite like eating the things she cooks .
£25 for a kit to refill 907’s starts to look well worth the effort .
But there is this – which I have not seen before until I searched just now.................
http://www.gasproducts.co.uk/acatal...l_Gauge.html?gclid=CLyf28CEtssCFQbgGwod8pEA6Q
If it takes 2.75kg of gas that’s less than 6 litres which would be about £2 per refill at a road fuel station.
I expect lpg might be slightly less efficient than Butane but , for me, payback would be under two years. Are there any issues with lpg rather than butane?
£25 for a kit to refill 907’s starts to look well worth the effort .
But there is this – which I have not seen before until I searched just now.................
http://www.gasproducts.co.uk/acatal...l_Gauge.html?gclid=CLyf28CEtssCFQbgGwod8pEA6Q
If it takes 2.75kg of gas that’s less than 6 litres which would be about £2 per refill at a road fuel station.
I expect lpg might be slightly less efficient than Butane but , for me, payback would be under two years. Are there any issues with lpg rather than butane?
VicS
Well-Known Member
Some/ many roadside fillings stations in the UK may not fill them.. Eventually the message will get through and they will unless local regulations /terms of their licence do not allow it.
The LPG at the roadside is a mixture of propane and butane. Variable I think, but you will need a regulator and appliances that are suitable. Appliances probably will be but you may need a 30mb regulator if you dont already have one.
Not sure what you mean by, "lpg might be slightly less efficient than Butane" You will get almost the same amount of heat from butane, propane and lpg on a weight for weight basis.
nigelmercier
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One thing to consider is degradation of the cylinder in a marine environment. I'd be a bit wary of keeping one for more than a few refills. I did have a plastic base to stand my 907 in, a perfect fit on the base, but it's a bit past it now.