How Often Should You Service a Gas Heater in South Australia?
If you have a gas heater at home, getting a regular gas heater service is one of the most important things you can do for your family's safety. It is not just about keeping the heater running efficiently — it is about making sure it is not producing carbon monoxide (CO), a colourless, odourless gas that can be fatal.
Here’s everything you need to know about servicing schedules, what the service covers, and the warning signs that mean you should not wait.
How Often Should You Service a Gas Heater in South Australia?
The general recommendation from gas safety authorities across Australia is that gas heaters should be serviced at least every two years. However, many licensed gas fitters — our team at Richardson Plumbing & Gas — recommend an annual service for heaters that are used regularly through the winter months. The more hours a heater runs each year, the sooner wear and tear accumulates on burners, heat exchangers, and flue systems.
For older heaters, or those that have not been serviced in several years, a full inspection should happen as soon as possible rather than waiting for the next scheduled date. Age is a significant factor: heaters that are more than 10 years old are more likely to develop faults that affect both performance and safety.
Why Servicing Matters: The Carbon Monoxide Risk
Carbon monoxide poisoning is one of the most serious risks associated with poorly maintained gas heaters. When a heater's burner is dirty or the flue is blocked, combustion becomes incomplete and CO can build up inside your home. Because you cannot see or smell it, many people are unaware of exposure until symptoms appear — headaches, nausea, dizziness, and in severe cases, loss of consciousness.
The SA Health Carbon Monoxide Fact Sheet outlines the health risks in plain terms and is worth reading if you want to understand what CO exposure can do. Installing a CO alarm in your home is also strongly recommended as an added precaution.
A qualified gas fitter will check the flue integrity, burner condition, heat exchanger, seals, and gas pressure during a service — all the components that, if faulty, can contribute to CO leaking into your living spaces.
What Happens During a Gas Heater Service?
A thorough gas heater service is not just a quick visual check. A licensed gas fitter will typically:
Clean the burner assembly and remove dust and debris from the heat exchanger
Inspect the flue and venting system for blockages, damage, or deterioration
Check the gas pressure and confirm it sits within the manufacturer's specification
Test the pilot light, ignition system, and thermostat controls for correct operation
Look for signs of cracking or corrosion in the heat exchanger, which is a common cause of CO leakage
Confirm all seals and connections are sound
After the service, a competent tradesperson will explain what they found, what was done, and whether any parts need attention. You should always receive documentation of the work carried out. This is important for your records and for any warranty considerations.
South Australia Regulations and Licensing
In South Australia, all gas work must be carried out by a licensed gas fitter under the Gas Act 1997 (SA). This includes servicing, installation, and repair of gas appliances. Unlicensed work is illegal, unsafe, and can void your home insurance.
When you engage a plumber and gas fitter, ask to see their licence. In South Australia, gas fitting licences are issued by Consumer and Business Services (CBS). A licensed professional will carry identification and can provide their licence number on request.
At Richardson Plumbing & Gas, Ryan Richardson holds full gas fitting qualifications and handles all gas work to Australian Standards. You can read more about Ryan's background on the About Page.
Signs Your Gas Heater Needs Attention Now
Do not wait for your next scheduled service if you notice any of the following:
A yellow or orange flame instead of a clear blue flame — this can indicate incomplete combustion
A persistent gas smell near the heater or appliance
Unusual sounds such as banging, rattling, or a delayed ignition pop
The heater cycling on and off more frequently than usual
Black soot or staining around the heater vents or on the front panel
Anyone in the household experiencing unexplained headaches or flu-like symptoms when the heater is running
Any of these signs warrants an urgent inspection. Our gas fitting and compliance service covers both routine servicing and urgent fault assessments across Adelaide's western and southern suburbs.
Ducted Gas Heating vs Portable Gas Heaters
The servicing intervals above apply to both ducted gas heating systems and portable or flued gas space heaters. Unflued portable gas heaters — which vent combustion gases directly into the room — require particularly careful attention because there is no flue to carry gases outside. The Australian Gas Networks consumer information provides helpful guidance on safe use of these appliances.
Ducted systems involve additional components such as the main unit, ductwork, and registers, all of which can accumulate dust and debris over time. These systems benefit from both a gas appliance service and a duct clean, though duct cleaning can be handled separately.
How to Book a Gas Heater Service in Adelaide
If you are in Warradale, Marion, Brighton, Seacliff, Glenelg, or anywhere across the western and southern suburbs and your heater has not been serviced in the past two years, it is time to book. Winter is the worst time to discover a problem, so getting ahead of it in autumn is sensible planning.
Richardson Plumbing & Gas also handles emergency plumbing and gas calls if you have an urgent issue that cannot wait.
Frequently Asked Questions
How often should a gas heater be serviced in South Australia?
Gas heaters in South Australia should be serviced at least every two years, with annual servicing recommended for heaters used heavily during winter or for appliances that are more than 10 years old.
Who can service a gas heater in South Australia?
Only a licensed gas fitter can legally service a gas heater in South Australia. Licences are issued by Consumer and Business Services (CBS) under the Gas Act 1997 (SA).
What are the signs that a gas heater needs servicing?
Key warning signs include a yellow or orange flame, a gas smell near the appliance, black soot around the vents, unusual noises, frequent cycling, or household members experiencing unexplained headaches when the heater is in use.
Can a poorly serviced gas heater produce carbon monoxide?
Yes. If a gas heater's burner is dirty, the heat exchanger is cracked, or the flue is blocked, combustion can become incomplete and carbon monoxide can enter your home. CO is odourless and colourless, making it undetectable without a CO alarm.
How long does a gas heater service take?
A standard gas heater service typically takes between 45 minutes and 90 minutes, depending on the type of heater, its condition, and how accessible the appliance and flue are.
If your gas heater is due for a service — or if you have any concerns about its performance — get in touch with Richardson Plumbing & Gas. We service homeowners across Warradale, Marion, Brighton, Glenelg, and the wider southern suburbs of Adelaide, and will give you a plain-English rundown of exactly what we finds.
Call Ryan on 0423 322 865 or click here to request a quote online. We regularly service Warradale, Marion, Brighton, Glenelg, Seacliff and surrounding Adelaide suburbs.
