No Gaslow or Health & Safety vigilantes.REFILLING PROPANE

[rickboy]

Daddy!!!!

At last !!! Now I know who my farther is. Kill the fatted calf,the prodigal son returns.

 

[maingate]

Sorry lad, you are not my son. You see brains run in our family so you cannot be a relation.

I knew a bloke very much like you who could have been your dad but he died in a fire.

 

[Norris]

You folks are more volatile than propane.I only asked if anyone had any experience of this.
This is WILD CAMPING isn't it ?
Do you guys all wear safety goggles to read the paper and a waterproof apron to drink a cuppa?

Cuppa tea??? Cuppa tea??? With all the chemicals in it??? Not to mention the risk involved with all that boiling water!! What you think this forum is -- a site for ruffty tuffty campers!! Bugger.

 

[rickboy]

I thought it was!!!

 

[rickboy]

Touche'

Sorry lad, you are not my son. You see brains run in our family so you cannot be a relation.

I knew a bloke very much like you who could have been your dad but he died in a fire.

Touche'. I will concede.

Thanks for the banter.

 

[Deleted member 8180]

I think you could do this with a funnel if it was a really cold day. Could practice my fire juggling to keep warm while I was waiting for the gravity thing to work.

 

[maingate]

In theory, you could transfer Butane by hand if the ambient temperature was below zero as the boiling point of Butane is -0.5 degrees C.

Propane has a boiling point of -42.1 degrees C and is much more dangerous. If it was safe to do it, your fingers would be frozen on to the metal.

 

[rickboy]

I think you could do this with a funnel if it was a really cold day. Could practice my fire juggling to keep warm while I was waiting for the gravity thing to work.

I was hoping you would do your usual chain saw juggling act!!
How many is it now ,3?

Or is it only women who can multi task?

 

[Hallii]

I do it using a proper connecting hose from a 13Kg Calor to a 907 GAZ, and have done it with others.

Use a proper connector and have a valve at each end. You cannot use a regulator as there will be a non return valve in it, use a simple connector.

.5 mtr head will allow liquid to flow but it is slow, just leave it for an hour or more, it will get there eventually. There is no need to heat anything, just let it do it's thing. I stand the 907 on a set of bathroom scales.

Weigh the cylinder full and empty and make 100% sure that it has only the weight of liquid allowed, this is marked on the cylinder. You must leave a space above the liquid for expansion of about 20%.

Do not use old cylinders, they might be rusty inside or outside.

Do it outdoors, no naked lights, well ventilated etc. Just use common sense, LPG is Highly flammable and explosive with air, (but then so is petrol, cellulose thinners, natural (in your house) gas, and lots of other things.

The cost of an exchange 907 is £21. DIY is £4. No contest.

I make home made fireworks as well but that is a grey area law wise so I wont go into that.

Anon (I have hijacked Halli's account to post this)

 

[bigboack]

Slightly off subject here but when where I worked we used big industrial presses, these were charged with Oxygen free Nitrogen, Now on this particular day some numpty of a fitter charged the press with Oxygen. Well you can imagine the first time the press came down, it went with an all mighty bang and the fitter ended up in hospital with major serious burns and a burst ear drum. He wont do that again. Some say his hair piece was blown off also so you can imagine how many wigs were handed in over the next few months. True story this.

 

[rickboy]

Thanks

I do it using a proper connecting hose from a 13Kg Calor to a 907 GAZ, and have done it with others.

Use a proper connector and have a valve at each end. You cannot use a regulator as there will be a non return valve in it, use a simple connector.

.5 mtr head will allow liquid to flow but it is slow, just leave it for an hour or more, it will get there eventually. There is no need to heat anything, just let it do it's thing. I stand the 907 on a set of bathroom scales.

Weigh the cylinder full and empty and make 100% sure that it has only the weight of liquid allowed, this is marked on the cylinder. You must leave a space above the liquid for expansion of about 20%.

Do not use old cylinders, they might be rusty inside or outside.

Do it outdoors, no naked lights, well ventilated etc. Just use common sense, LPG is Highly flammable and explosive with air, (but then so is petrol, cellulose thinners, natural (in your house) gas, and lots of other things.

The cost of an exchange 907 is £21. DIY is £4. No contest.

I make home made fireworks as well but that is a grey area law wise so I wont go into that.

Anon (I have hijacked Halli's account to post this)

Many thanks for your interesting post/reply to my original enquiry
Rick

 

[maingate]

I have resurrected this old (and very contentious) thread for one reason only. Various threads have mentioned refilling bottles and weighing them to find out how much gas is still in them.

Well!!!!!....... I have the answer and it is simples.

A poster on another forum says that he sprays a bit of hot water on to his gas bottle and then feels the bottle (starting from the bottom) and is able to tell pretty accurately where the liquid gas ends, by the temperature difference.

I actually believe he could be correct, so why don`t you good people, especially the autogas users give it a try and report back. The people with scales, who weigh their bottles could also try it.

This is not a wind up.

 

[Kontiki]

I think this would only work if you are taking gas off, as it evaporates inside the bottle it requires heat so the liquid is colder than the gas in the bottle. Only the same as the magnetic things you can stick on the side of the bottle to show the level. They only work when you are using gas & even then you need to be taking quite a bit out for it to show.

I use scales & I can weigh re-fillable bottle in situ using luggage scales. In my van I have a seat above the gas locker, taking the cushion off I drilled a small hole & using a chord attached to a plate I fixed to the gas bottle I can get a pretty good weight after loosening the straps holding the bottle. I have confirmed it by weighing it before re-filling & working on 1kg = 2Litres I am within 0.5 of a litre with my estimated weight.

 

[maingate]

Hi Kontiki,

My thinking is that the liquid gas is around -45 degrees. That is the point that Propane freezes. The area above it is filled with gas, so it has `melted`, if you know what I mean.

What the difference in temperature will be, I have no idea but I think there will be one.

BTW; If you have drilled a hole down through the top of your gas locker, do not expect any insurance payout if things go wrong. The locker must be sealed off from the habitation area.

 

[Kontiki]

If liquid gas was -45 degrees you wouldn't be able to touch the bottle, it's only when you take gas off it needs heat to vaporize that is why the liquid part of the bottle becomes cooler. Check the temperature of any bottle left standing for some time & there would no or virtually very little. Just look at a bottle connected up to one of those gas heaters & you will see ice on the side.

BTW the hole I drilled was a number 60 drill 1mm just slightly larger than the nylon cord I used, LPG is heavier than air & the bottom of the gas locker has a mesh covered drop out hole of about 1.5" x 4".

 

[maingate]

If liquid gas was -45 degrees you wouldn't be able to touch the bottle, it's only when you take gas off it needs heat to vaporize that is why the liquid part of the bottle becomes cooler. Check the temperature of any bottle left standing for some time & there would no or virtually very little. Just look at a bottle connected up to one of those gas heaters & you will see ice on the side.

BTW the hole I drilled was a number 60 drill 1mm just slightly larger than the nylon cord I used, LPG is heavier than air & the bottom of the gas locker has a mesh covered drop out hole of about 1.5" x 4".

You need to read up on Boyle`s Law.

 

[Deleted member 775]

TBH mate gas is cheap, Apart from heating in the winter which you use perhaps every other weekend (full timers different). Even buying gas in red bottles is not that expensve that I would bother with this agro or risk. You could blow yourself up for the price of a pint of beer.

just to let you know about gas usage being full time .we use a small 6kg bottle for cooking and that lasts 6 weeks on average they are round about 16 quid for propain and a 15 kg calor for heating lasts mabey just over a fortnight they are 26 quid so all in all i dont think that is too bad heluva lot cheaper than our bills used to be at home

 

[cipro]

just to let you know about gas usage being full time .we use a small 6kg bottle for cooking and that lasts 6 weeks on average they are round about 16 quid for propain and a 15 kg calor for heating lasts mabey just over a fortnight they are 26 quid so all in all i dont think that is too bad heluva lot cheaper than our bills used to be at home

Would it not be cheaper and easer to use gasflo system because you are
one of the full timers on this site, and I am sure this subject has been
brought before

 

[Kontiki]

You need to read up on Boyle`s Law.

Would that be Susan Boyle Prefer sod's law myself though.

If the liquid propane inside the cylinder is left standing will get to whatever the ambient temperature is, it is only when you draw gas off that it needs to 'boil' so it can vaporize. This it can do at a low temperature, in doing so it needs to draw heat in from the cylinder so the part with the liquid in gets cooler & if you are taking a lot of gas off for a reasonable time you can see ice forming on the outside of the cylinder.

 

[Deleted member 775]

Would it not be cheaper and easer to use gasflo system because you are
one of the full timers on this site, and I am sure this subject has been
brought before

yes that woul be ideal, but unfortunatly the expence rules it out at the moment if i had the cash spare i would change tommorow the old pensions wont run to it i am afraid and the savings must be kept for an emergency