LPG from a bottle to a fitted tank

[JohnJan]

Is this feasible? If a motorhome was in one place and unable to move and fitted with an onboard LPG tank, could one get a gas cylinder and transfer the contents into the onboard tank assuming the connectors were available?

 

[Jimbohorlicks]

Best check the Internet, can be dangerous.
Just a question, if you are prepared to lug a full bottle to your van, with a view to transferring it to an underslung, why don't you just use the bottle and connect it to your supply as normal?

 

[Geo]

Best check the Internet, can be dangerous.
Just a question, if you are prepared to lug a full bottle to your van, with a view to transferring it to an underslung, why don't you just use the bottle and connect it to your supply as normal?

Spock would be proud of you.
As i cant think of a logical reason to do what he asks i'll settle for 2nd place

 

[Geo]

Is this feasible? If a motorhome was in one place and unable to move and fitted with an onboard LPG tank, could one get a gas cylinder and transfer the contents into the onboard tank assuming the connectors were available?

Feasible Yes if prepared to hold cyl upside down you want liquid not gas exchanging
Practical No
Controllable No
Safe NO
Equipment to do it is available on e bay with free will and funeral plans included
Stand by for the I do it all the time Red Neck invasion

 

[JohnJan]

Just a question, if you are prepared to lug a full bottle to your van, with a view to transferring it to an underslung, why don't you just use the bottle and connect it to your supply as normal?

I was just pondering as we have an unused bottle in the garage from a previous van and we're contemplating parking up for a bit and using a car for running about. Logical thought process!! Even if not HSE friendly!!

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[Kannon Fodda]

Regardless of the safety issue, there has to be a simple practicality on physics. Unless you are going to have some sort of pump / compressor, the gas emerging from the portable bottle won't stay in liquid form for longs so the on board tank will have gas as vapour, not liquid form, so it actually won't get very full.

But there are hoses available so you can connect a portable bottle to your fillet inlet and effectively, if your onboard tank has emptied, use the portable bottle as an extended cylinder into your onboard system. http://www.gasit.co.uk/gas-it-reserved-gas-supply-hose-system-pol.html

 

[JohnJan]

But there are hoses available so you can connect a portable bottle to your fillet inlet and effectively, if your onboard tank has emptied, use the portable bottle as an extended cylinder into your onboard system. http://www.gasit.co.uk/gas-it-reserved-gas-supply-hose-system-pol.html

Now that's a good solution. I always realise that individually we don't have to be too bright, just have to ask the right question!!

 

[autorouter]

The standard solution to this problem is to fit a 'barbecue point', ie an external gas outlet. Tee it into the pipe on the the low pressure side of the regulator.

If you hook up a portable bottle with a regulator to the barbecue point (acting as an inlet), the regulated gas will go to all your gas appliances

 

[Robert Clark]

The standard solution

Not as elegant as using a hose connected to the filer point
And a much safer DIY job
And you can use the bbq point for its intended use

 

[Richard n Ann]

Have a look at this old can of worms

Ignore the question marks, it's to do with the old forum software not recognising emojis.

Gaslow reserve filler connection hose.

We run out of LPG after 4 weeks in Benidorm as we now run the fridge on gas. Sandp spotted this hose to connect them with a Spanish bottle so no need to move the van off site. Much cheaper than an external BBQ point, no regulator or system modifications needed ? Leave the external bottle upside...

www.motorhomefun.co.uk

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[Cheshirecat57]

Just also make sure that whilst you are doing it, you have left your parrafin stove lit at home nice and close to the net curtains

 

[jezport]

The standard solution to this problem is to fit a 'barbecue point', ie an external gas outlet. Tee it into the pipe on the the low pressure side of the regulator.

If you hook up a portable bottle with a regulator to the barbecue point (acting as an inlet), the regulated gas will go to all your gas appliances

This is correct, in fact when I had my tank fitted I had a BBQ point fitted inside my old gas locker for this purpose.

 

[tonyidle]

Regardless of the safety issue, there has to be a simple practicality on physics. Unless you are going to have some sort of pump / compressor, the gas emerging from the portable bottle won't stay in liquid form for longs so the on board tank will have gas as vapour, not liquid form, so it actually won't get very full.

If both tanks are at the same temperature nothing will happen because the pressures are equal. If the cylinder is warmer then liquid will transfer propelled by the higher vapour pressure in the bottle (if held upside down). It's a pointless discussion and an unsafe practice if only because no-one would engineer a fully safe connection just for one operation.