Elgas LPG Gas Blog

How to Check Gas Bottle Level - Gas Bottle Level Indicator - How to Tell How Full a Gas Bottle Is

LPG Cylinder Level Indicator - How to Check Gas Bottle Level

Ideally, a gas appliance is in use. Carefully pour the hot water down the side of the gas bottle. Feel the gas bottle from the top down. The steel will feel warm until you get to the gas bottle level, where it feels cooler. The gas bottle level is at the level where the temperature changes.

How to check your gas bottle level (gas bottle level indicator):

1. Fill a jug or bucket with hot tap water (more is better)

2. SLOWLY pour the water down side of gas bottle

3. Feel for temperature change with your hand

4. Where it's cold is the gas level. Near the top is good. No difference indicates empty.

Be careful not to scald yourself with the hot water. Do NOT use boiling water when you check gas bottle level!

See Full Version of How to Check Gas Bottle Level instructions below

Read more, including "How To" video, on why this works and for tips & tricks on how to tell how full a gas bottle is…

How to Check Gas Bottle Level: The Video (48 seconds)

The following short video (0:48) shows how to tell how full a gas bottle is...

Did You Know that Your LPG Boils?

LPG is stored under pressure, as a liquid, in a gas bottle.  
It turns back into a gas by 'boiling' into gas vapour.  
This happens at the very low temperature of -42°C. 
To boil, the liquid LPG draws heat from the steel walls of the gas bottle. 
This, in turn, makes the gas bottle feel colder than the ambient temperature.

At the Same Time You Can Get Ice on Your Gas Bottle

Ice on LPG gas cylinderThe gas bottle gets even colder when you are actually using the gas. 
Under the right conditions, when you are using gas very rapidly, ice can even form on the gas bottle!

Gas Bottle Level Indicator to Check Gas Bottle Level Explained

The gas bottle level indicator to check gas bottle level is the difference in temperature that can be felt on the side of the cylinder when you check how to tell how full a gas bottle is. The point at which the temperature changes is your gas bottle level indicator for how to check gas bottle level.

This how to check gas bottle level tip works with either 45kg home gas bottles or BBQ gas bottles.

This may be difficult to feel so try the following procedure...

How to Check Gas Bottle Level - How to Tell How Full a Gas Bottle Is - Full Version

The full version of how to tell how to check gas bottle level (how to tell how full a gas bottle is):

1.    Do NOT use boiling water, as you would risk scalding yourself. Filling a bucket or large jug with hot tap water from your home should work fine.

2.    Using care, SLOWLY pour the hot water down one side only of the gas bottle.  QUICK TIP: More water is better, as it will make it easier to feel the gas bottle level indicator difference in temperature to check gas bottle level. I actually fill a cleaning bucket with hot tap water when I check gas bottle level. 

3.  A line of condensation may appear as your gas bottle level indicator to check gas bottle level.  If not:

4.  Wait a few seconds and then run your hand down the same side of the gas bottle, where you poured the water to tell how much gas in gas bottle.

5.  You should feel a change of temperature to tell how much gas is in gas bottle.

If you feel no difference, the gas bottle level may well be empty.

Be careful not to scald yourself with the hot water when you check gas bottle level!

QUICK TIP:

The test to check gas bottle level works even better during or after you use one of your LPG appliances. For example, if you have LPG hot water, check gas bottle level right after someone takes a shower, as it's much easier to tell how full a gas bottle is.

MT Tracker BBQ™ Gas Monitor

Gas Bottle Level Gauge

A gas bottle level gauge that really works is an ultrasonic unit that sits under the BBQ gas bottle and sends a gas bottle level gauge reading, via Bluetooth, to an app your mobile phone. So, now you can see the gas bottle level on your mobile phone.

You download and install the app in the normal way.

The sensor works well on BBQ size bottles but cannot be used with a 45kg gas bottle. So, you'll need to stick with the hot water test. They are sold under various brand names in different countries.

BOC sell one in Australia called MT Tracker BBQ™ that sells for just under A$40.

Pressure Gauges Don't Work to Tell How Much Gas in Gas Bottle

With compressed gas bottles, like scuba tanks, pressure drops as the compressed gas is used, so a pressure gauge will indicate or check the remaining gas bottle level.

However, LPG is not compressed gas, it is liquefied gas. 

The vapour pressure varies with temperature but not to tell how full a gas bottle is.

As LPG is a liquefied gas, the vapour pressure inside the cylinder will remain the same from full gas bottle level until the last of the liquid LPG is vapourised.

So, if your are trying to check gas bottle level of LPG remaining, pressure gauges don't work as an LPG cylinder level indicator.

How to Tell How Full a Gas Bottle Is

Also, please remember that gas bottles are designed to be full at 80% gas bottle level or just over 3/4.

This allows for the natural expansion of the gas during warmer temperatures.

For safety reasons, NEVER open the valve on an unattached gas bottle to check gas bottle level, even if you think it is empty.

 Alternative Way of How to Check Gas Bottle Level

An alternative way how to check gas bottle level (how to tell how full a gas bottle is) for a BBQ size gas bottle level is by using a scale. 

Disconnect the bottle and place it on a scale, making sure the valve is firmly closed.

The tare (empty) weight of the bottle is stamped on the neck ring.

The difference between the scale reading and the tare weight should tell how much gas in gas bottle.

8 Tips for Never Running Out of LPG Gas Again!

We know that there is nothing more inconvenient than being out of home LPG gas. 
Here are a few handy tips, if you are a gas bottle exchange customer, to help you avoid running out:

1.  Always order gas as soon as the first bottle runs out. 

Don't wait until the gas bottles are both empty or near empty. 

Follow this advice and you are virtually assured to never run out of gas.

2.  Remember to order sooner, rather than later, during the busy winter season.

3.  Remember to check gas bottle level more often in cold weather, especially if you use a gas heater or gas log fire. 

Even your water heater has to work harder in cold weather, as the incoming water is colder.

4.  Having additional house guests can also increase your usage if you have gas hot water. 

Remember to test check gas bottle level more often so both you and your guests avoid cold showers!

5.  If you only have one gas bottle attached to your home, you may wish to consider adding a second gas bottle. 

Unless you are on automatic tanker delivery, you will either run out or have to call for a gas bottle exchange before using up all of your gas. 

These are both situations you would surely like to avoid. 

A second bottle solves the problem and is particularly wise if you use your gas for hot water and/or heating.

6.  If you are an Elgas customer, make sure we have your Mobile Number so you receive Gas Check Alerts by Text (SMS). 

These are sent automatically, by our computer, based on your past gas usage. 

With Gas Check Alerts, you will never forget to check gas bottle level again.

7.  Remember to increase how often you check gas bottle level if you install additional gas appliances.

8.  Also, be certain to tell your supplier if you install additional appliances, especially if you are on automatic tanker delivery, so we can adjust your delivery schedule.

Follow these tips and you should enjoy using of your gas appliances without interruption.

 

 

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The information in this article is derived from various sources and is believed to be correct at the time of publication. However, the information may not be error free and may not be applicable in all circumstances.