Lighting a gas fireplace is straightforward once you know which ignition system yours uses — but a gas fireplace lights very differently from a wood fire, and getting the steps wrong leaves you fiddling with a cold appliance on a freezing Melbourne night. The first job is to identify your ignition type, because the lighting procedure depends entirely on whether you have a standing pilot, a manual piezo igniter, or a modern electronic ignition.
This guide walks through the three ignition systems, the exact step-by-step for lighting each safely, what to check when the fireplace will not light, and the safety and servicing points that keep a gas fireplace running cleanly. Throughout, one rule holds: lighting and relighting by the correct steps is something you can do, but any repair to a gas appliance must be left to a licensed gasfitter.
Types of Gas Fireplace Ignition
Gas fireplaces use one of three ignition systems, and knowing which you have tells you how to light it.
Standing pilot
The most common system in older and many current units. A small pilot flame burns continuously, and turning the fireplace on simply releases gas to the main burner, which the pilot ignites. Standing-pilot units have a control knob with OFF, PILOT and ON settings. The pilot keeps a component called the thermocouple warm, which holds the gas valve open as a safety feature.
Piezo or manual spark
Similar to a standing pilot, but lit manually with a built-in piezo igniter — the button you press that produces a spark. You hold the gas control in and click the igniter to light the pilot, rather than relying on a constantly burning flame. Many standing-pilot fireplaces use a piezo button as the way to relight the pilot.
Electronic ignition
The modern system, lit on demand from a switch, wall control or remote, powered by a battery or mains. There is no constantly burning pilot — the fireplace sparks the burner electronically each time you turn it on, which is more gas-efficient because no fuel is consumed keeping a pilot alight when the fire is off. If your fireplace turns on from a switch or remote with no visible standing flame, it is an electronic-ignition model.
Step-by-Step Lighting
Follow the procedure that matches your ignition type. If your appliance has a manufacturer’s instruction label near the control, that label always takes precedence over a general guide.
Standing pilot or piezo
1. Locate the control knob, usually behind the lower grille. 2. Turn it to OFF and wait five minutes to let any gas clear — do not skip this step. 3. Turn the knob to PILOT, press it in and hold. 4. While holding, press the igniter button until the pilot flame lights, listening for the click and watching for the small flame. 5. Keep the knob pressed in for about thirty seconds after the pilot lights, so the thermocouple heats up and holds the valve open. 6. Release the knob — the pilot should stay lit. If it goes out, you did not hold long enough; repeat and hold longer. 7. Turn the knob to ON and set the flame height.
Electronic ignition
Simply turn the fireplace on at its switch, wall control or remote. The unit sparks and lights the burner automatically within a few seconds. If nothing happens, the usual culprit is a flat battery — replace it and try again, and confirm the gas supply is on.
What to Do If It Won’t Light
When a gas fireplace will not light, work through the simple checks before calling for help — most failures come down to a handful of causes.
Confirm the gas is on. Check the supply at the meter or bottle and confirm other gas appliances in the home are working. Check the pilot. On a standing-pilot unit, the pilot may simply have gone out — run the full relight procedure and be sure to hold the control knob in long enough for the thermocouple to heat. Check the battery. On an electronic-ignition unit, a flat battery is the most common cause; replace it. Look for blockages. After the warm Melbourne months, spiders and insects commonly nest in the pilot assembly or burner over summer, blocking the gas and preventing ignition — this is a frequent autumn fault and needs a gasfitter to clean properly.
If the fireplace still will not light after these checks, stop. Do not keep pressing the igniter repeatedly or attempt to dismantle anything. Repeated failed ignition attempts release unburnt gas, and any internal fault — a faulty thermocouple, a gas-valve problem, a blocked burner — must be diagnosed and repaired by a licensed gasfitter. In Victoria, gas appliance repairs are legally restricted to licensed professionals for good reason. Persisting with a faulty gas appliance is exactly the situation that leads to the carbon monoxide risks covered in carbon monoxide and chimney safety.
Safety and Annual Servicing
A gas fireplace is a safe, clean heat source when it is maintained — and a genuine hazard when it is neglected. The two things that matter most are watching the flame and servicing on schedule.
Watch the flame colour. A healthy gas flame burns mostly blue, indicating clean, complete combustion. Many decorative gas-log fires are designed to show some yellow tips for realism, which is normal — but a flame that has turned predominantly yellow, lazy and sooty on a unit that used to burn blue signals incomplete combustion, which produces carbon monoxide. If you see this, along with any black sooting around the fireplace, stop using it, ventilate the room and book a gasfitter.
Service on schedule. Have the fireplace serviced by a licensed gasfitter every one to two years — annually for heavy winter use. A service cleans the burner and pilot, clears dust and insect nests, checks the flue and seals, confirms correct combustion and tests for carbon monoxide spillage. Gas fireplaces that vent through a flue depend on that flue being clear, so the same flue-condition principles in gas fireplace flue requirements apply. Booking in February to April means the appliance is ready before the cold and before gasfitters get busy. A working carbon monoxide alarm near the fireplace is a cheap, essential backstop, and the wider service picture is covered in gas fireplace service in Melbourne.