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Gas Bottles
- Thread starter Annie3
- Start date
As a "back up" to off-set worrying you might want to consider using a CampingGaz 907 bottle if you could beg borrow or seal one for the duration.
Refills of these are very available in France etc, and they are light enough to carry; we use it for a BBQ as well.
You need an adaptor like this that presents a left hand thread as used in the UK for screw on butane connections and is often the coupling used on pig-tail connection.
http://www.gasproducts.co.uk/acatalog/Campingaz_Cylinder_Adaptor.html
You don't want to be buying a new 907 CampingGaz bottle, as the “rental” price is sick both here and in France; ask around friends who have tented in the past. Even carrying an empty one enables you to get a refill and be holidaying again if needed.
Refills of these are very available in France etc, and they are light enough to carry; we use it for a BBQ as well.
You need an adaptor like this that presents a left hand thread as used in the UK for screw on butane connections and is often the coupling used on pig-tail connection.
http://www.gasproducts.co.uk/acatalog/Campingaz_Cylinder_Adaptor.html
You don't want to be buying a new 907 CampingGaz bottle, as the “rental” price is sick both here and in France; ask around friends who have tented in the past. Even carrying an empty one enables you to get a refill and be holidaying again if needed.
How long you had it ? We've been using the same one for our BBQ for nearly 2 years and its done a lot off cooking including nearly every morning and night when we've been away , plus two weeks in France !
Hello Annie,
Your principal objective is not to run out of gas without having refill handy to swap to.
There are a number of ways that can be managed.
You can get an automatic changeover regulator that allows you to have two gas cylinders. The gas is preferentially drawn from on cylinder until its empty , then the auto device switches to the second cylinder. Daily checks on the state of the change over valve will tell you when you need to replace the empty cylinder. This system keeps you supplied with gas continually, and gives you a quite wide window to change the empty cylinder.
YOu can also get manually operated changeover valves, but you will only know when you are out of gas on the working cylinder when the gas actually runs out.
In a similar manner you could just carry two cylinders and when the first empties, swap it for the second, and then get a full replacement ready for the next time the bottle empties.
In all these cases, if you are travelling on the continent it a seriously good idea to switch to the Camping Gaz bottles because of their wide availability.
This should only entail getting the correct pigtails fitted to your caravan, which can be swapped back to UK models when you return.
There are only two ways of determining how much gas you have left, one is to run it until none of the appliances work, - by which time its too late, or the second is use the weight method as described by Woodlands.
There are some devices on the market that claim to show how much gas you have left in the cylinders, but the effective ones are expensive and they are all no where as reliable as the weighing method.
The gas suppliers either use rather expensive volume meters, or they weigh the bottles.
Your principal objective is not to run out of gas without having refill handy to swap to.
There are a number of ways that can be managed.
You can get an automatic changeover regulator that allows you to have two gas cylinders. The gas is preferentially drawn from on cylinder until its empty , then the auto device switches to the second cylinder. Daily checks on the state of the change over valve will tell you when you need to replace the empty cylinder. This system keeps you supplied with gas continually, and gives you a quite wide window to change the empty cylinder.
YOu can also get manually operated changeover valves, but you will only know when you are out of gas on the working cylinder when the gas actually runs out.
In a similar manner you could just carry two cylinders and when the first empties, swap it for the second, and then get a full replacement ready for the next time the bottle empties.
In all these cases, if you are travelling on the continent it a seriously good idea to switch to the Camping Gaz bottles because of their wide availability.
This should only entail getting the correct pigtails fitted to your caravan, which can be swapped back to UK models when you return.
There are only two ways of determining how much gas you have left, one is to run it until none of the appliances work, - by which time its too late, or the second is use the weight method as described by Woodlands.
There are some devices on the market that claim to show how much gas you have left in the cylinders, but the effective ones are expensive and they are all no where as reliable as the weighing method.
The gas suppliers either use rather expensive volume meters, or they weigh the bottles.
Could you please clarify? At the BBQ point gas pressure is the same whether gas is flowing out of the caravan or into it, since in either case it is controlled by the regulator. AFAIK a flexible rubber hose is still ok for the BBQ, so I'm unclear at which point this would not be regarded as acceptable at least as a short term measure, in the way a BBQ is short term..
chrisn7 said:
My van for instance has got the old type bottle mounted regulator so what you are suggesting would be dangerous with that type of bottle and setup as it would be giving the full bottle pressure direct to every item that uses gas as the pressure is entering the system the wrong side of the regulator...
That would be the same for the bulkhead mounted regulators as well ....
Whilst I echo Sprockets reply which relates to bottle pressures, which is an absolute no no. You will do damage to parts of the system, and cause gas to escape - which is illegal. and downright dangerous.
I think what chrisn7 was suggesting was using an external bottle with its own regulator which means he would be back feeding at 30mBar.
The fulham nozzle itself will be unlikely to be affected but other appliances connected to the same installation may be, with especial concern for the caravans regulator.
Regulators are principally designed to control the variable high pressure gas leaving the bottle and to meter it to the installation pipe work at near constant pressure.
They are not designed for a low pressure on the inlet side and a higher on the outlet. This pressure inversion across the regulator may cause the regulator to leak back across its valve port. This contrary to its designed purpose.
Causing a gas appliance to be used in any way which is contrary to its designed purpose is illegal, and is highly dangerous.
DONT DO IT.
I think what chrisn7 was suggesting was using an external bottle with its own regulator which means he would be back feeding at 30mBar.
The fulham nozzle itself will be unlikely to be affected but other appliances connected to the same installation may be, with especial concern for the caravans regulator.
Regulators are principally designed to control the variable high pressure gas leaving the bottle and to meter it to the installation pipe work at near constant pressure.
They are not designed for a low pressure on the inlet side and a higher on the outlet. This pressure inversion across the regulator may cause the regulator to leak back across its valve port. This contrary to its designed purpose.
Causing a gas appliance to be used in any way which is contrary to its designed purpose is illegal, and is highly dangerous.
DONT DO IT.
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