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Liquified Petroleum Gas (LPG)

Liquefied petroleum gas (LPG) is a flammable gas with a high hazard that is used extensively in New Zealand. It is used in compressed gas cylinders or pressurised tanks.In the workplace, LPG is commonly used:

  • as fuel for vehicles, including forklift trucks
  • for industrial heating, furnaces and in workshops


If you have more than 100 kg of LPG

If you have more than 100 kg of LPG, you will require:


If the LPG is not under the control of an approved handler, you must have it secured.


LPG at home

Domestic installations of LPG are usually supplied in 2 x 45 kg cylinders (a twin pack). These cylinders are located outdoors and do not need a Location Test Certificate. If you have more than one "twin pack" attached to a single domestic residence you will need a Location Test Certificate. Many people also use portable cylinders for heaters and BBQs. Portable LPG cylinders typically come as 9kg cylinders. There are limits on how many of these cylinders you can use and store indoors. The Environmental Protection Authority (EPA) can provide more information about the use of LPG at home.


LPG information sheets


Requirements for indoor LPG cylinders

Liquefied Petroleum Gas (LPG) is supplied in New Zealand as a mixture of propane and butane. There are limits on how much LPG can be stored indoors.

Limits on Indoor LPG Cylinders
Location Max. Quantity of LPG Max. Size of Cylinder
a detached house or single-storey attached dwellings, and multi-storey attached dwellings up to 3 storeys 20 kg per dwelling 10 kg cylinder
multi-storey attached dwellings over 3 storeys 10 kg per dwelling 10 kg cylinder
hotels, bars, restaurants, public buildings, places of worship, shops, offices, and laboratories that are not attached to a dwelling 10 kg per 10 sq. m. of the indoor floor area, up to a maximum total quantity of 100 kg 10 kg cylinder
hotels, bars, restaurants, public buildings, places of worship, shops, offices, and laboratories that are attached to a dwelling 20 kg per premises 10 kg cylinder
factories and warehouses 45 kg per 50 sq. m. of the indoor floor area, up to a maximum total quantity of 180 kg per occupancy 45 kg cylinder


Note: a dwelling includes the garage if it is attached. If the garage is not attached, the limits do not apply.


Testing cylinders every 10 years

All cylinders and valves must be inspected and pressure tested every 10 years. Testing involves checking the cylinder and valve to confirm they are serviceable and safe to be filled and used for a further 10 years.

Cylinders that are not serviceable or safe must be declined and destroyed by the tester. Testing is done by a periodic tester. You can search for an approved periodic tester here (select Type=Periodic Tester)


Filling cylinders safely

People filling cylinders at service stations or at ‘swap-a-bottle’ facilities, must hold an approved filler qualification. Approved fillers will not fill a cylinder:

  • That is not approved.
  • That has gone beyond its test period.
  • That appears to be unsafe.


Having the right cylinder connections

Make sure you have the right connection for your LPG cylinder. There are two main types of connections:

[image] POL outlet connection and bullnose [7 KB JPG].

POL outlet connection and bullnose: POL fitting has a left hand thread. Brass to brass POL connections are loosened and tightened with a spanner; rubber tipped bullnoses are loosened and tightened by hand.


[image] QCC outlet connection and coupling [7 KB JPG].

QCC outlet connection and coupling: A QCC connection has a right hand thread. It is called a quick coupling connection and is tightened or loosened by hand.


Do not mix the different connections. This can result in LPG leaks.

Adaptors can be fitted to join the different types of connectors. But it is dangerous and illegal to use the wrong ones.

Guidance on using LPG safely [951 KB PDF]


Last updated 29 March 2017


On Monday 4 April 2016, the New Health and Safety at Work Act 2015 (HSWA) came into effect.

HSWA repeals the Health and Safety in Employment Act 1992, with immediate effect.

All references to the 1992 Act on this website and within our guidance will be progressively removed.