Gas Bottle Swap
-
- Posts: 2019
- Joined: Fri Nov 23, 2012 2:43 pm
- Location: N.F.A.
Re: Gas Bottle Swap
Bunnings are around $23 exchange. We carry 3 of the big bottles, locker was built to carry that many
Wobblybox on wheels
Pace Arrow. La de da, property in two continents..
Pace Arrow. La de da, property in two continents..
-
- Posts: 774
- Joined: Fri Dec 14, 2012 9:28 pm
- Location: on the east coast.
Re: Gas Bottle Swap
I thought it was illegal to carry more than 18kg in a vehicle. 

Full time on the road in an Alpine 2855
-
- Posts: 2019
- Joined: Fri Nov 23, 2012 2:43 pm
- Location: N.F.A.
Re: Gas Bottle Swap
Was certified with 3 in
Wobblybox on wheels
Pace Arrow. La de da, property in two continents..
Pace Arrow. La de da, property in two continents..
-
- Posts: 62
- Joined: Fri Sep 12, 2014 6:14 am
Re: Gas Bottle Swap
Did a course many years ago on gas installation, had troubles with TAFE qualified fitters so needed to learnt a few things. It was a long time ago, so don't quote me as it may have changed.bagmaker wrote:as T1 Terry alludes to, its best to get them re-filled as early in the morning as possible, before the day heats up
When gas is in a liquid state, molecules tend to slide around each other. Add heat and they start to bounce off of each other, so the liquid expands. If they bang into each other hard, they can break away from their molecule structure, becoming a floating gas molecule, or evaporation. The molecules bounce off of each other when they are heated and the gas expands because they bounce off of each other harder.
Can't readily remember the formula, but believe for every increase of 1deg temp within the gas bottle, adds 5 percent to volume. Which may mean if you get 9kg at an ambient temp of say 12deg in the morning and the temp reaches 25deg at noon, the internal gas temp may rise about 4-6 deg, which would still be well below freezing. That may mean a 25% loss of volume when filling, it's worse when decanting from large storage to small, as the smaller bottles heat quicker than large ones.
We always filled our work bottles first thing in the morning, still do when travelling and always look for storage which is shaded to get a fill. The place we got our work gas from always loved it when people came in the afternoon to fill up, especially caravans. Their bottles are always warm when empty and with afternoon temps, hot storage and hot receiver, the fill can be up to 30% less. It's the same with car gas, the later in the day, the less gas you get and if you get it in the late arvo, you will lose a lot.
Re: Gas Bottle Swap
The bloke I take my beer gas tank to puts the bottle into his fridge for 1 hour before refilling, I suppose for much the same reason?
Bernie.
Welcome slowhand.
Bernie.
Welcome slowhand.
-
- Site Admin
- Posts: 9304
- Joined: Thu Nov 22, 2012 7:32 pm
- Location: Mannum, SA, 5238
- Has thanked: 36 times
- Been thanked: 36 times
Re: Gas Bottle Swap
Yes, Welcome Slowhand!
When I used to go across the big paddock I found nearly all the distillate tanks were above ground & if you fueled up in the afternoon or evening you got ripped off in a big way. Fueling up in the morning was better but the fuel was still warm. Underground tanks keep the fuel much cooler.
Bernie are you providing room for the beer gas tank on your new build? lol lol
When I used to go across the big paddock I found nearly all the distillate tanks were above ground & if you fueled up in the afternoon or evening you got ripped off in a big way. Fueling up in the morning was better but the fuel was still warm. Underground tanks keep the fuel much cooler.
Bernie are you providing room for the beer gas tank on your new build? lol lol
*******************
BruceS
Mannum, SA
********************
BruceS
Mannum, SA
********************
Re: Gas Bottle Swap
Was gunna but Carol gave me a look not worth repeating.
Retreat was far more 'bettera' in those circumstances.
Bernie.
Retreat was far more 'bettera' in those circumstances.
Bernie.
-
- Posts: 24720
- Joined: Fri Nov 23, 2012 6:12 pm
- Location: Strathalbyn SA
- Been thanked: 37 times
Re: Gas Bottle Swap
OK OK female here asking "please explain" about this gas stuff I thought methane was the stuff they were trying to stop sheep and cows producing??slowhand wrote:For
We won't be needing gas at home soon, putting together a biogas/methane digester after our next trip. Visited a house with one not far from us and learnt they get enough gas to use all year round, supported by a combustion stove. They told us of a combustion stove in excellent condition for $350, way up in the central highlands, when I told them we would come with a trailer to get it, ( putting in really classy new one), they offered to delivery it for free, 250klm away, it arrives Tuesday. Will have beer, wine and food for when they arrive.
Queen of the Banal & OT chatter and proud of it. If it offends you then tough titty titty bang bang.
-
- Posts: 8784
- Joined: Mon Nov 26, 2012 7:00 pm
- Location: Home on the beautiful Gold Coast for a while.
- Has thanked: 81 times
- Been thanked: 66 times
Re: Gas Bottle Swap
Dot, Quite a few local councils have been harvesting biogas/ methane from rubbish tips and sewerage treatment plants and using it as fuel for generators to power their installations. The idea is to use it up before it gets released to atmosphere. I'm not sure if this is what Slowhand has in mind. He may be going to build a new type of fuel cell, which is still cutting edge technology.
Cheers
David
David and Terrie
2006 Winnebago Alpine
Not all who wander are lost.
David
David and Terrie
2006 Winnebago Alpine
Not all who wander are lost.
-
- Posts: 62
- Joined: Fri Sep 12, 2014 6:14 am
Re: Gas Bottle Swap
Nope, no cutting edge technology, just a plain biogas generator combined with a methane collector.
Biogas comes from decomposing matter, methane is produced from animal/human waste. Put simply, the biogas comes from composting and methane from the septic. If you remember the big gas tanks around cities year ago, it's the same storage process. You upend one drum into another, put water in it and the gas fills and raises the upended drum, which gives you pressure for the gas.
Biogas is pretty odourless which can make it hard to know if it is working, when combining it with methane you get a smell. Haven't made one of these so it will be a project after our next trip and once I get my head around the technology.
Our combustion stove arrived Tuesday evening and it's in great condition, the bloke we got it from is working on the 3 cape walking track down on the Tasman peninsula, so it was out of his way to get to us.
We met some people down here who get gas and hot water out of their silage pits all year round, plus it provides excellent winter fodder for their cows. We don't have cows, but lots of grass so may make our own big compost pit and see what we can get out of it, plus it will give us lots of compost for the gardens.
Biogas comes from decomposing matter, methane is produced from animal/human waste. Put simply, the biogas comes from composting and methane from the septic. If you remember the big gas tanks around cities year ago, it's the same storage process. You upend one drum into another, put water in it and the gas fills and raises the upended drum, which gives you pressure for the gas.
Biogas is pretty odourless which can make it hard to know if it is working, when combining it with methane you get a smell. Haven't made one of these so it will be a project after our next trip and once I get my head around the technology.
Our combustion stove arrived Tuesday evening and it's in great condition, the bloke we got it from is working on the 3 cape walking track down on the Tasman peninsula, so it was out of his way to get to us.
We met some people down here who get gas and hot water out of their silage pits all year round, plus it provides excellent winter fodder for their cows. We don't have cows, but lots of grass so may make our own big compost pit and see what we can get out of it, plus it will give us lots of compost for the gardens.