Gas regulators

Submitted: Monday, Sep 08, 2025 at 22:33
ThreadID: 151545 Views:6589 Replies:5 FollowUps:15
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Caravans have a standard gas regulator to reduce the bottle pressure to a delivery pressure of 11" WC. Thats how I understand it.

I have a gas mate 2 ring burner that comes complete with its own regulator and hose. I believe that regulator has an outlet pressure of 2.75kpa (its not stamped but google tells me that figure). In other words ~ 0.4psi

To use it I need to remove the fitting on the caravan gas bottle and screw in the supplied hose with its regulator. Thats straight forward enough.

Im thinking that if I use a supply hose with a bayonet connection, plug that into the caravan outlet that is down low for a bbq bayonet and the other end straight to the gas ring it should be perfectly OK as the regulator is up at the gas bottle? Much easier than disconnecting hoses etc at the bottle.

Given that the caravan regulator is 11"WC (that is ~ 0.4 psi). Its straight forward enough to me.

Forgive the mix of psi, WC and kpa as that is the mix of pressure measurement that the various devices state..frustrating having to cross convert to ensure it's all same/same.

So, in summary apart from no flame failure device on the gas ring any thoughts on do or dnot do?






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Reply By: qldcamper - Tuesday, Sep 09, 2025 at 05:05

Tuesday, Sep 09, 2025 at 05:05
I guess it's like a lot of things.
Boils down to weather or not you want it covered by insurance or not if anything goes wrong especially if there is an injury or worse.
Jail can't be as bad as a nursing home can it?
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Follow Up By: Member - bungarra (WA) - Tuesday, Sep 09, 2025 at 09:37

Tuesday, Sep 09, 2025 at 09:37
Thanks, I should have made my post clear in that the gas ring is not a fixed device.

It is portable to be used outside the caravan and not fixed. My understanding is that the rules re flame outs apply to those devices fixed in/on caravans.
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Follow Up By: Nomadic Navara - Tuesday, Sep 09, 2025 at 23:28

Tuesday, Sep 09, 2025 at 23:28
The flame out requirement applies to all appliances connected to the vans LPG system.
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Reply By: Member - McLaren3030 - Tuesday, Sep 09, 2025 at 07:12

Tuesday, Sep 09, 2025 at 07:12
Hi Bungarra,

Unless your 2 ring gas burner comes with a flame out safety switch to shut the gas supply off if it senses no flame, it would be illegal to connect it to the caravan gas system via a bayonet fitting. The regulations regarding bayonet fittings and gas appliances changed a couple of years ago. I cannot remember the gas regulation number, but it was mentioned on this forum a number of times last year. You could search the forum for the relevant thread, or you could also “Google” caravan gas bayonet regulations to find the correct answer.

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Follow Up By: Member - bungarra (WA) - Tuesday, Sep 09, 2025 at 09:42

Tuesday, Sep 09, 2025 at 09:42
Thanks. I understand the compliance rules regarding a flame out device and using the bayonet. My reading of the new rules is that is for "fixed devices"

I ensured our bbq was compliant as soon as these came in place.

The gas ring is a portable device to be used outside the caravan, simply boiling water a pot of for a crab's prawns. Never operating inside the caravan and never fixed.

If I have read those rules correctly then the gas ring under those circumstances is compliant, however I may well be very wrong.
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Follow Up By: Member - McLaren3030 - Tuesday, Sep 09, 2025 at 10:28

Tuesday, Sep 09, 2025 at 10:28
Bungarra,

Once you connect the "portable" device to the bayonet, it is considered to be part of the Fixed Caravan Gas System, as the bayonet is part of the fixed caravan system, anything you connect to the bayonet then comes under the current regulations. Your interpretation of the regs is exactly what the latest update to these regs was meant to cover off.

This was widely debated at the time, and the conclusion was that anything connected to the caravan fixed gas system, including via the bayonet, must comply, unless the caravan was built prior to the date of the latest update to the regs.

The only way to legally use this gas ring is to do what you have been doing, that is disconnect one of the gas bottles from the caravan, and connect your gas ring directly to the bottle. In many peoples eyes, there does not seem to be any difference to using the bayonet fitting, however the regulations now specifically include the bayonet fitting.

Of course, the decision is yours, however you can face a hefty fine is you are found using you gas ring connected to the bayonet fitting. Also, in the unlikely event of a fire, your insurance will be null and void.

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Follow Up By: Member - bungarra (WA) - Tuesday, Sep 09, 2025 at 12:57

Tuesday, Sep 09, 2025 at 12:57
Thanks. All clear, I will remain compliant and continue to use it " stand alone".
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Reply By: Allan B (Sunshine Coast) - Tuesday, Sep 09, 2025 at 10:33

Tuesday, Sep 09, 2025 at 10:33
.
Hi Bungarra,

This is from Standard Australia……….
"AS/NZS 5601 is the Australian and New Zealand standard for gas installations, specifying safety and design requirements for the installation of natural gas, LP gas, and biogas systems in domestic, commercial, and industrial settings, including caravans and boats."

Note that it applies to "in" caravans etc. Not to portable appliances outdoors. I have referred to my copy of the Standard and it would not appear that your portable gas ring is subject to this Standard. If you have a compliant bayonet outlet outside the van then you could safely and legally connect a portable gas appliance to that. Such appliance should have been manufactured in accordance with an appropriate standard but not to AS/NZS 5601. For use outdoors it would not be required to incorporate an automatic flame-out protection feature.

Having said that, the regulations applicable to gas appliances are comprehensive and can be difficult to interpret so to be certain you could consult a licensed gas fitter for advice.

SEE UPDATE TO THIS POST IN FOLLOW-UP BELOW

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Follow Up By: Allan B (Sunshine Coast) - Tuesday, Sep 09, 2025 at 12:21

Tuesday, Sep 09, 2025 at 12:21
.
Further to what I said above, I have now downloaded the latest version of the Standard AS/NZS 5601.2 and have found the following which did not appear in my former copy:

"1.1.2 Exclusions.
This Standard does not apply to -
(e) Portable or mobile appliances (such as barbecues or patio heaters) that are connected to an LP Gas cylinder other than where an LP Gas cylinder(s) is connected to piping."

Accordingly, if the appliance is connected by a hose directly to the cylinder it is not subject to this Standard, BUT if the appliance connects to piping, such as a bayonet outlet and then piping to the cylinder it would be required to be subject to the Standard.
That expression essentially says that the connected portable appliance would be required to conform to the Standard and all its applicable requirements. It does not exclude the use of such appliances. Again, I would suggest you ask a licensed gas-fitter.
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Reply By: Member - nick boab - Tuesday, Sep 09, 2025 at 12:36

Tuesday, Sep 09, 2025 at 12:36
Hi Bundarra , Is this for outside use & connecting to the caravan bayonet connection ?

when i spoke to our local gas fitter he mentioned gas regulations were different in each state but that might be different to caravan & what your asking about here .

Are you in WA ?

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Follow Up By: Member - bungarra (WA) - Tuesday, Sep 09, 2025 at 12:58

Tuesday, Sep 09, 2025 at 12:58
Its outside however I'm going to stick with it stand alone and not use the bayonet.

Good advice here and always best to be cautious and go the safest route.
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Reply By: Batt's - Wednesday, Sep 10, 2025 at 19:25

Wednesday, Sep 10, 2025 at 19:25
Just wondering if you do disconnect one of the caravans gas bottles from the vans system to use on say a BBQ for example that doesn't have a flame failure device does the gas bottle have to be removed from the van and placed on the ground say next to the BBQ so it's not in contact with the van.
It might be an odd question but can that simply thing make a difference to the outcome.
I don't have a van at the moment it was just a thought that ran through my brain.
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Follow Up By: Allan B (Sunshine Coast) - Wednesday, Sep 10, 2025 at 21:37

Wednesday, Sep 10, 2025 at 21:37
.
Hi Batt's, as the Standard says.... "other than where an LP Gas cylinder(s) is connected to piping.", then this gas cylinder is now isolated from the piping installation so the Standard does not apply.
But as each Australian State applies additional rules then who the hell knows? Then of course, what rules actually apply.... those of the State of vehicle manufacture, or those of the vehicle's current location? No wonder people want to take up Law as an occupation!
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Follow Up By: Batt's - Thursday, Sep 11, 2025 at 02:33

Thursday, Sep 11, 2025 at 02:33
No worries.
Yeah some laws stop short and leave things open to difference interpretations from individuals. I think they deliberately do it sometimes to generate controversy amongst the community.
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Follow Up By: Member - Ups and Downs - Thursday, Sep 11, 2025 at 07:07

Thursday, Sep 11, 2025 at 07:07
Or it's because the clowns who have a passion for dreaming up ever more complex and confusing regulations don't have the clarity of mind to state them clearly.
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Follow Up By: Member - McLaren3030 - Thursday, Sep 11, 2025 at 07:53

Thursday, Sep 11, 2025 at 07:53
Batts,

Allan B’s response is the correct one, once disconnected from the gas piping, under the regulations, it is irrelevant where the gas cylinder is actually located.

Also, these particular regulations are a National Standard and apply in every state and territory. Unlike some other regulations, such as requiring a current “Gas Compliance” certificate every time you register you caravan, as some states insist on.

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Follow Up By: qldcamper - Thursday, Sep 11, 2025 at 09:25

Thursday, Sep 11, 2025 at 09:25
Maybe the regs are written that way because the writers assume the people that care enough to read them have a degree of common sense and don't think they have to cater for complete idiots, even idiots with bits missing.
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Follow Up By: Allan B (Sunshine Coast) - Thursday, Sep 11, 2025 at 09:44

Thursday, Sep 11, 2025 at 09:44
.
It may be helpful if I outline the role and application of Standards in Australian legislation.

Australian Standards appeared in the 1920s produced by the Standards Association of Australia (SAA). The name and formation has changed over time and is now SAI Global, an international company.
Initially, contributors were largely voluntary and in the 1960s I was a member occasionally serving on committees for review of draft standards for electrical installations in hazardous areas.

The produced standards initially have no legal authority until they are referred to in Government legislation where they may be referred to in part or whole in a Government Act.
Understanding this potential, the authors tend to compose standards in the formal language of legal documents rather than in an instructional form. Being an engineer that needed to instruct tradespersons I sometimes ran into wording arguments in these committees. We sometimes added notes of clarification but such seem to not appear in recent Standards.

In essence, the Standard is a legal document rather than an instructional one and may not be simple to correctly discern by a layman. To complicate matters further, legislation by a government may add further requirements to the Regulation, varying State-to-State. It is often necessary for tradespersons to obtain "interpretations" of the regulation. It is perilous therefore to interpret less than clear expressions without experience or departmental advice.
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Follow Up By: Allan B (Sunshine Coast) - Thursday, Sep 11, 2025 at 09:53

Thursday, Sep 11, 2025 at 09:53
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Hi QC, "Maybe the regs are written that way…….."
No, "commonsense" has nothing to do with it. Only the meaning in Law. Interpreted by lawyers and judges and applied by Courts. It is an industry of interpretation and application earning billions.

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Follow Up By: qldcamper - Thursday, Sep 11, 2025 at 10:39

Thursday, Sep 11, 2025 at 10:39
Yep, the world of litigation killed common sense. There will be rooms devoted to common sense in museums soon.
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