Supply gas via external BBQ - is 37mbar ok on 30mbar system?

[RogerIvy]

I was helping someone prepare to have their MH parked up for a few months.
They are hoping to use external BBQ point with a big calor bottle as their refillable only lasts a weeks or two.

The MH is based on 30mbar.
All regulators for calor (propane) bottles are 37mbar.
I’m assuming this is NOT a match? Is it imperative they get a 30mbar POL regulator?

 

[Clivefog]

Can you not get a pigtail to connect to the onboard regulator , which will most likely cope with the pressures?

 

[Lenny HB]

Some appliances may not burn 100% correctly at 37 mb, and gas jets will ware a bit quicker.

 

[Cush]

Sorry for the dumb / ill informed question, but why not get a pigtail long enough to use the big bottle with the installed regulator?

im sure someone with the expertise will be a long soon

 

[Basildog]

Sorry for the dumb / ill informed question, but why not get a pigtail long enough to use the big bottle with the installed regulator?

im sure someone with the expertise will be a long soon

Probably a better solution than using what would be the incorrect pressure regulator and almost certainly a basic single stage regulator with no over pressure protection device.
Strictly speaking you shouldn’t use a pigtail over 750mm but longer ones are available.
Biggest problem with long high pressure pigtails is reliquification which can damage the regulator.
The only correct method of connecting an external gas cylinder to a leisure vehicle is with a medium pressure regulator on the external bottle connected to the gas installation before the onboard vehicle regulator.
Like this : https://autogasshop.co.uk/product/gok-external-gas-supply-bottle-back-up-extend-a-stay/

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[Orion]

I was helping someone prepare to have their MH parked up for a few months.
They are hoping to use external BBQ point with a big calor bottle as their refillable only lasts a weeks or two.

The MH is based on 30mbar.
All regulators for calor (propane) bottles are 37mbar.
I’m assuming this is NOT a match? Is it imperative they get a 30mbar POL regulator?

Primus have a 30mb regulator with POL connection. About £15 from outdoors suppliers.

 

[RogerIvy]

Thanks for all the replies.
He actually already has two refillables connected to the regulator and would prefer to not mess with them.

I‘ve read several times that folk use a external Bullfinch BBQ to supply gas on the odd occasion. Was hoping someone on here has actually done it.

 

[RogerIvy]

Primus have a 30mb regulator with POL connection. About £15 from outdoors suppliers.

Do you have a link?

Edit: found Amazon product ASIN B07PNBHP5Z

 

[Basildog]

Do you have a link?

Edit: found Amazon product ASIN B07PNBHP5Z

Just be aware that while that regulator may appear to tick all the boxes it’s not designed for use on a Leisure vehicle.
It’s a basic single stage regulator without any over pressure protection and if it fails it could fail to full bottle pressure.
We refuse to sell single stage if we are told it’s going on a modern caravan / Motorhome.