Welcome to the Elgas LPG Gas Blog

Learn More: LPG Facts & Technology

Learn more about LPG facts & technology from this compilation of popular blogs.

Includes comparisons and plain English explanations to FAQs…

What is LPG?

LPG heats our homes, cooks our food and fuels our cars but what is LPG?  How is LPG made and how does it work?  All of these questions answered and more…

Propane vs LPG - What’s what?

Propane vs LPG?  What is the difference?  We help clear away the confusion.  Learn more...

Butane vs Propane

What is the real difference between butane, isobutane, propane & LPG?  They are all very similar but there are important differences that you need to know…

What is Isobutane? [i-Butane]

What is isobutane? How is it used and made? What are the physical properties of isobutane? How is isobutane different from other LPG gases?  Learn more...

LPG Gas Physical Properties

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

Is LPG Heavier than Air? - Is LPG Lighter than Air?

LPG gas is not lighter than air. LPG gas – propane – is heavier than air. In fact, LPG is over 50% heavier than air at sea level. So, LPG gas settles in low places…

Is LPG Liquid or Gas?  Liquid vs Vapour LPG

LPG exists in two different forms, liquid & vapour (gas). The storage pressure & temperature determines which kind you have…

How LPG (Propane) Liquid Changes to Gas – LPG Vaporisation

Did you know that every time you turn on a gas appliances, the LPG in your gas bottles starts to boil? Learn how LPG (propane) goes from liquid to gas…

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

Differences between LPG & Natural Gas explained.  Comparison of LPG, Natural Gas, Propane, Butane, Methane, LNG, & CNG…

Natural Gas Alternative – Simulated Natural Gas (SNG)

Simulated Natural Gas is a readily available substitute for natural gas shortages. SNG is a direct replacement for natural gas, with no perceptible differences…

NGL vs LNG vs LPG vs Natural Gas vs Condensate - What are Natural Gas Liquids?

NGL vs LNG vs LPG? Natural Gas Liquids is becoming a more commonly used term. What are they, how are they used and what are the differences?

CNG vs LPG – Comparing Properties, Sources & Uses

CNG is compressed natural gas – methane. LPG is liquefied petroleum gas – propane. There are many similarities between LPG and CNG, as well as some major differences…

How LPG Works - Gas Bottles - Regulators - Appliances - Vaporizers

How does LPG work? The LPG pathway to you includes drilling of wells, refining, transport, storage, vaporisation, regulators and the gas appliances themselves…

Where Does LPG Come From & How is it Made?

There are two sources for LPG (propane) — natural gas & oil refining. This article discusses the details of how it is processed into pure LPG. Learn more…

LPG Contains Which Gases? - Gases Present in LPG

LPG is not just a single gas. LPG describes a category of flammable hydrocarbon gases. LPG gases can all be compressed into liquid at fairly low pressures…

What is LPG Used For?

The uses for LPG (propane) are in the hundreds, if not thousands.  Learn more about what LPG is used for, including unusual applications. You’ll be amazed…

How LPG is Transported: Ships - Trucks - Rail - Pipelines

LPG can be transported in a number of ways - by ship, rail, tanker trucks, intermodal tanks, cylinder trucks, pipelines and even mule trains & pushcarts…

How LPG Gas Bottles-Cylinders are Refilled - Filling Methods

There are two ways that LPG gas bottles are typically refilled – by weight and by decanting. We’ll look at the details and the pros & cons of both methods…

How LPG Cylinder Works - How a Propane Tank Works

LPG is under pressure, as a liquid, and turns back into gas when you release some pressure. The gas is in the top of the bottle & the liquid LPG at the bottom…

Pressure Inside LPG Cylinders? In What State? Propane Cylinder Pressure

The pressure inside an LPG cylinder, or larger vessel, is dependent upon the temperature of the vessel. The higher the temperature, the higher the pressure…

How is LPG Measured?  Weight - Volume - Energy - Pressure

LPG can be measured in a number of different ways.  These include weight, liquid volume, gaseous volume, energy content and pressure. Click to learn more…

LPG Conversion Values: KG, Litres, MJ, kWh & M³

LPG (propane) conversion tables: kg, litres, megajoules (MJ), kWh & cubic meters (m³) for common gas bottle sizes.  Also Gallons, Pounds, BTU, ft³ & Therms…

Propane Conversion Values: Pounds, Gallons, BTU, Therms & ft³

Propane conversion table for Pounds, Gallons, BTUs, Therms & ft³ for popular USA gas cylinder sizes.

Why is a Gas Flame Blue & Why is it Important?

Blue flames are good. Red/Yellow flames... not so much.  Find out why gas flames are blue & why that is important for your family’s safety & to save money.

History and Origin of LPG Gas

Discover the history and origin of LPG gas.  Find out who first identified LPG (propane), the origin of LPG and how its refined.

LPG Quality Assurance – LPG Standards & Testing

The LPG you get is of the highest quality, as LPG quality problems are rare. This is the result of strict standards, thorough testing & great compliance…

Ultimate Glossary for LPG Gas & Gas Appliances

Have questions about LPG terminology?  Find definitions for all terms relating to LPG & gas appliances, including links to in-depth articles, in this comprehensive glossary.

What is Bottled Gas?

"Bottled Gas" is a synonym for "LPG" or "propane". Whilst there are many types of gas that come in bottles or cylinders, the term generally refers to LPG or propane…

What is Propane Gas?

Propane is the gas that heats our homes & hot water, cooks our food, powers our BBQs & fuels our cars.  Learn more about this versatile gas that comes in a bottle...

LPG Meaning – What Does LPG Stand For?

LPG stands for Liquefied Petroleum Gas. It can also go by other names including LPG gas, bottled gas, propane, BBQ gas, camping gas, autogas & LP gas…

LPG, LPG Gas, LP Gas, BBQ Gas, Autogas or What?

LPG goes by many names.  Here is a quick tongue-in-cheek summary of the various terms used to describe our favourite product.  It's the LPG name game…

Home LPG Gas Regulators & Fittings

Learn what LPG regulators do and how they do it.  We also explain changeover valves & all other fittings used to connect your gas bottles to your home…

LPG Gas Supply Chain Infographic

Explanation of the LPG Gas Supply Chain. Includes an east to follow infographic showing the seven steps of the LPG gas supply chain...

Brass + Cotton = LPG Safety

The use of brass fittings and cotton clothing are just two of the many safety precautions taken with LPG gas. Find out why they are important and more…

What is a Gas Compliance Certificate, Plate or Badge?

A gas compliance certificate, plate or badge is very important when you have gas at your home. Learn more about these compliance documents...

LPG is Not Coal Seam Gas

LPG is not Coal Seam Gas (CSG). There is some confusion over what Coal Seam Gas (CSG) is and what it is not. CSG is Methane. LPG is Propane. Learn more...

What is LNG?

LNG, or Liquefied Natural Gas, is natural gas in a compact liquid form. Find out about 'stranded gas' & how it becomes a liquid at −161°C & more...