Elgas FAQs and "How to" Instructions

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LPG FAQ • Frequently Asked Questions

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About LPG

New to LPG Gas Questions

Gas Bottle & Regulator Questions

Ordering My LPG Gas Questions

Managing My LPG Gas Supply Questions

Safety Questions

 Price Questions

Payment Options

Appliance Questions

Also see our Glossary for LPG & Gas Appliances


About LPG

What is LPG?

There is a lot more to LPG than you might think.

Please see What is LPG?


What are the physical properties of LPG?

Properties of LPG including specific gravity, boiling point, vapour expansion, energy content, combustion facts, flame temperature, flash point & more…

Please see LPG Gas Physical Properties


Where does LPG come from & how is it made?

Learn about the sources and the production process for LPG.

Please see Where LPG Comes From & How is it Made


What are the LPG conversion values: KG, Litres, MJ, kWh & M³?

Unlike water, 1kg of LPG does NOT equal 1L of LPG.  Use the handy conversion table that includes all common gas bottle sizes.

Please see LPG Conversion Value Chart for KG, Litres, MJ, kWh & M³


What is the difference between LPG and natural gas?

LPG and natural gas are similar but not interchangeable.

Please see Comparison: LPG & Natural Gas, Propane, Butane, Methane, LNG & CNG


What is LPG used for?

The uses for LPG are in the hundreds, if not thousands.

Please see Uses of LPG


Who discovered LPG and when?

Learn the history of LPG.

Please see History and Origin of LPG Gas


What kind of quality control is there for LPG?

The LPG you get is of the highest quality, as LPG quality problems are rare.  Find out how it's done.

Please see LPG Quality Assurance – LPG Standards & Testing


Why is a gas flame blue?

Please see The Importance of a Blue Flame


Please see Propane & LPG - What’s what?


Yes, but it is different, as the Propane may be blended with Butane.  This is commonly known as Autogas

Elgas supplies Autogas through our UNIGAS division.



New to LPG Gas Questions

  How do I operate a home LPG gas system?

Please see information you need to know if you are a New User of Home LPG


  How do I know which LPG gas supplier to choose?

Please see How to Compare LPG Gas Suppliers


How do I add LPG to my all-electric home and how much does it cost?

To add LPG to your home, you engage a licensed gas fitter to install the gas regulator, changeover valve and the “pigtails”.

The gas fitter also connects the gas line from the regulator to your appliance(s).

These components and the appliances are your property.  

Please see How To Add LPG Gas to Your Home for more details

The cost of the installation includes regulator, valve, pigtails, the gas line to the appliances and the cost of the gas fitter's labour. 

The cost will vary by the length of the gas line required between the regulator and the appliances and the individual gas fitter. 

The cost is typically in the $550 to $900 range. 

You do not need to buy the gas bottles.  Elgas owns and provides the gas bottles.


Please also see:

How to Switch to LPG Hot Water for Your Home

How to Add an LPG Heater to Your Home

How to Add a Gas Fireplace to Your Home

How to Add LPG Gas Cooking to Your Home


Elgas prides itself on its Surety of Supply

Elgas has flexible access to many LPG sources, including imports, to help maintain supply security. 

Our main supply terminals include a dedicated facility at Dandenong, in Victoria, and an LPG storage cavern at Port Botany in Sydney. 

We also have Australia's largest fleet of LPG delivery vehicles to ensure a continuous flow of LPG to and through the Elgas supply network.


We supply LPG to most parts of Australia through strategically located depots and Customer Service Centres that provide localised service.


Gas Bottle & Regulator Questions

Please see LPG Gas Bottle-Cylinder Sizing for Homes


Yes.  There are exclusion zones based on wall openings, drains and ignitions sources to determine how far or how close a gas bottle-cylinder can be.  

Ignition sources include air conditioners and other electrical items as well as your BBQ and patio heater.

Please see LPG Gas Bottle-Cylinder Placement Guide with helpful diagrams


Please see Home LPG Gas Regulators and Fittings


Please see POL Valves & POL Cylinders Explained


Please see Ice and Condensation on Gas Bottles & Regulators


Ordering Questions

Please see 6 Fast & Easy Ways to Order Home LPG


Yes, we offer new customers a LPG Gas Bottle Welcome Package that includes $80 worth of gas account credits.  


Managing Supply Questions

Elgas has two methods of delivering LPG to your home:

Automatic Tanker Delivery: Exclusive to Elgas, EasyGas™ involves delivery via state of the art tankers, which refill your cylinders on site.

You won't have to remember to order LPG and there's no more replacement of cylinders.

Elgas monitors your usage and schedules regular tanker deliveries to suit your needs. 


Cylinder Exchange Program: In cases where we are unable to deliver via tanker, we deliver cylinders to your home.

Ideally, with two cylinders connected, we're able to replace one, when empty, ensuring you always have enough supply.

Please see more details of Your LPG Gas Supply Options


For detailed instructions see How Much Gas is Left in the Gas Bottle


Please see Tips for Not Running Out of Gas  so you never run out again!


Why do I need two gas bottles?

Please see 2 Gas Bottles are Better than 1


For a reference chart with examples for various appliances and for multiple appliance homes:


If they run out of gas, some homeowners try to connect a 9 kg BBQ gas bottle as a temporary measure.

Elgas does NOT recommend this practice, as it can be very hazardous.

Customers should contact Elgas in all out-of-gas situations.   


Please see FAQs for Moving Home with LPG Gas when you are ready to move


Safety Questions

If used and handled in accordance with prescribed procedures LPG is safe.

As with electricity, natural gas, petroleum and other household chemicals, care should always be taken when using LPG.

Elgas has established an unrivalled reputation for safety, from regular compliance checks of your cylinders to the comprehensive safety and maintenance schedule of our tankers. 

Our LPG Gas & Safety page provides detailed information.


Why does LPG have an odour?

Please see The Smell of Safety – Odourised Gas


Gas bottles must be used and stored upright for safety reasons. 

All home and BBQ gas bottles are fitted with pressure relief valves, which are designed to safely release gas in the event that the gas bottle becomes hot and the pressure becomes too great.

The pressure relief valves are incorporated into the main valve, which is at the top of the bottle. 

Inside the bottle, the LPG exists as liquid at the bottom and gas vapour at the top.  Keeping the bottle upright ensures that the safety valve is not immersed in the liquid and is located in the vapour space, as it is not designed to vent liquid.


Please see Indoor Storage of LPG Gas Bottles


Yes, when used according to the manufacturer's instructions. 

Also, please see 25 LPG Gas Heater Safety Tips


Please see Victoria Gas Heater Regulations explained


Please see LPG Bushfire Safety


LPG Material Safety Data Sheet


Price Questions

The price of LPG varies on a monthly basis based on a range of international and local market factors.  

Please see Australian LPG Pricing Explained 


Please see Service Charge Explained


Autogas is typically a different type of gas, with a percentage mix of Butane. But the pricing is mainly based on the volume used. 

Service stations purchase their LPG in large volumes, storing up to 65,000 litres at a time and refilling frequently.

The cost of delivery is also VERY different. 

With Autogas, we can deliver an entire tanker full of gas within a couple of hours. 

With home delivery, that same amount of gas could take many days to deliver. 

Also, remember that with Autogas, you go to the gas and you provide the labour to fill your tank instead of having the gas brought to your home and having someone else do the filling.


Payment Options

You can access our Online Services that allows you to source your up-to-date account information, order gas and make online payments, check delivery dates, leave special delivery instructions and more.

No special password required for residential customers. Just enter your customer number and surname and you are ready to go!


Convenient options including Direct Debit, Online, BPAY, Pay-By-Phone, pay at Australia Post, Pay-By-Mail or pay in person at your local branch.

Please see Your LPG Gas Payment Options


Appliance Questions

Please see Gas Appliance Certification & Labelling


Please see Star Ratings for Gas Hot Water Heater Systems or

Star Ratings for Gas Heaters, Gas Wall Furnaces & Gas Fireplaces


Please see Gas Appliance Maintenance & Service Guide


Please see Connecting & Disconnecting Gas Bayonet Fittings


What are the different kinds of gas heaters?

Please see Gas Heater Reviews by Type & Price


What are the different kinds of gas fireplaces?

Please see Gas Fireplace Reviews by Type & Price


Please see Comparing Flued and Unflued Gas Heaters


Please see Tankless Continuous Flow Hot Water vs Traditional Hot Water Tanks


Please see Gas Heater Sizing Facts


How do gas heaters compare to Reverse Cycle Heating (heat pump)

Please see Gas Heat vs Reverse Cycle Heating


Please see Gas Hot Water System Sizing Facts


How Does a Tankless Water Heater Work?

Please see Tankless Water Heaters Explained


No.  Gas appliances are manufactured for use with only one gas and will not work safely with the other gas.  

Never attempt to connect a gas appliance to the wrong type of gas, as it can be extremely hazardous. 

However, in many cases they can be converted.

Please see Converting LPG and Natural Gas Appliances


Elgas offers a broad range of LPG appliances from leading manufacturers like Rinnai, Bosch and Paloma. You can browse through our entire range with our Online LPG Gas Appliance Catalogue.

Didn't find your answer? 

Signup for new LPG gas account

Click to Open New Account


New LPG customers get $80 of gas credits
 See Welcome Package for details.