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How do you know how much gas is in BBQ?

(12 Posts)
itiswednesday Wed 24-May-06 12:47:50

How do you measure it?

fairyjay Wed 24-May-06 12:55:43

Don't know - but hope someone does!!

melrose Wed 24-May-06 12:57:28

You pick it up,shake it a bit and guess! Wish I knoew as ours has not run out for ages and sods law sells it will when we have lots of people over, and you can't just have a spare one, as they need re-filling!

itiswednesday Wed 24-May-06 12:59:30

Thanks Can you just go and buy one so that we will have a spare one? As we have the same problem running out when people are here

itiswednesday Wed 24-May-06 14:00:01

bump

JackieNo Wed 24-May-06 14:10:45

Here you go!

fairyjay Wed 24-May-06 14:11:33

I think you probably have to go a fill the one that you think might run out - unless you buy another gas cannister on another contract?!!

shazronnie Wed 24-May-06 23:21:16

If your sausages are still pink and cold the gas has run out

scienceteacher Thu 25-May-06 06:13:49

You can often see condensation on the cylinder - water condenses on the part where the gas is liquefied.

Probably not in this weather, though.

Weight is the other way, but you'd have to know how heavy the empty cylinder is.

Gingerbear Thu 25-May-06 06:39:20

a pressure gauge on the regulator valve is the surest way. Other than that, check the flame - does it look as if it is switched to low even if the gas is on high? If the pressure is low, that is a good sign that the gas is nearly out.

SueW Thu 25-May-06 06:53:44

We have two - one on and one spare. The only prob is the risk of forgetting one ran out and when you go to get your spare you find it's empty.

A friend of DH's used to pour a slop of beer down the side and watch it - must have worked on the condensation principle mentioned earlier.

scienceteacher Thu 25-May-06 07:09:36

The pressure is only significant when the tank is almost empty (like about to run out completely), and is dependent on the temperature. That's because the gas is stored as a liquid with a vapour space above it. The pressure in the vapour space is dependent on the temperature of the gas, not on the volume of the liquid.

The best way is to weigh the cylinder and subtract the empty weight. According to Calor's website, the tare weight is printed on each cylinder.

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