The camping stove is the piece of gear you only notice when it will not light. Yet almost every field failure traces to the same three causes: a blocked burner jet, a perished seal, or moisture and old fuel in the line. None of them need a repair. They need a short, regular clean that most people never do. This guide sets out that routine, why each step matters, and how to store a stove so it is ready next trip. The advice here follows how gas and fuel equipment is generally meant to be cared for. It matches the safety guidance Australian fire and gas authorities publish.
What you'll take from this
- Most stove failures are a dirty jet, a tired seal or damp fuel.
- A quick wipe and check after every trip prevents most trouble.
- Never store a stove wet, and never store fuel in the heat.
- Test a stored stove before you rely on it on a cold morning.
Why stoves fail: the three usual culprits
A stove makes a small, controlled flame from gas or liquid fuel. Anything that disturbs that flow shows up as a weak, uneven or absent flame.
The burner jet is a tiny hole that meters the fuel. Spilled food, dust and carbon can half-block it, so the flame shrinks or wanders. This is the most common fault and the easiest to fix.
Seals and O-rings keep gas where it belongs. Over time, heat and dirt make them hard and brittle. A leaking seal wastes fuel and can stop a stove reaching pressure.
Moisture and stale fuel cause the third family of problems, mostly on multi-fuel stoves. Water in the line corrodes parts, and old fuel gums up the system.
Safety first
Always care for a stove outdoors or in a ventilated space, away from open flame. If you smell fuel, move to fresh air before doing anything else. Fuel leaks are a fire risk, not just a performance problem.
After every trip: wipe, check, dry
The habit that prevents most failures takes two minutes. While the stove is cool and clean, wipe the burner head and the area around it with a dry cloth.
Look at the flame ports for any food debris or crust. A soft brush clears them without damaging the metal. Do not push wire or a needle through ports you cannot see clearly.
Check the visible seals and any hose joint for cracks or a glaze of dried fuel. Replace a seal that looks hard or flattened before it leaks on you.
Most of all, dry the stove fully. Never pack a stove away damp. A wet stove in a dark bag rusts and grows blocked jets between trips.
Cleaning the burner jet properly
When a flame is weak or the stove will not light cleanly, the jet is the first suspect. Many stoves ship with a small cleaning tool for exactly this job.
Let the stove cool and depressurise fully. Then pass the supplied tool, or a fine needle, gently through the jet to clear any blockage. Go along the axis of the hole, not sideways, so you do not widen it.
A short burst from a fuel canister, or a blast of compressed air, can blow the loosened debris clear. Do this outdoors, away from any flame.
Reassemble and test on a full canister before you rely on it. A jet you have cleaned should give a strong, quiet, blue-brown flame rather than a lazy orange one.
Seals, O-rings and the fuel line
Seals are cheap and quietly vital. A light smear of the correct lubricant keeps them supple and stopping gas, but only where the maker says to. Too much grease on the wrong part draws dirt.
Check seals monthly if you use the stove often, and before any big trip if you have not. Replace any that are cracked, flattened or no longer sit flush.
For multi-fuel stoves, the pump and fuel line need attention too. Run a clean, dry line through the system on a scheduled basis, and pressure-check the pump so the stove reaches the pressure it needs to vaporise fuel.
If a stove loses pressure or the priming stage runs long, suspect a seal or a pump washer before you blame the burner.
Storing fuel and stove so it is ready next time
How you store the stove matters as much as how you clean it. Keep it dry, disassembled enough to air out, and out of direct sun.
Store canisters and bottles upright, in a cool, ventilated place, never in a hot vehicle or near a spark. Follow the safety guidance your state fire or gas authority publishes for LPG and camping fuel.
Do not leave fuel sitting in a multi-fuel stove for months. Old fuel varnishes the line. Run the tank nearly dry before long storage if the maker allows it.
Finally, light the stove once at home before a trip you will depend on it. A thirty-second test finds a problem where it is cheap to fix, not on the first cold morning in the field.
Frequently asked questions
- How often should I service a camping stove?
- Wipe and visually check it after every trip. That takes two minutes and prevents most faults. Do a proper jet clean and a close seal inspection every season of regular use, or before a long trip if the stove has sat idle for months. If it has been stored damp, or has not lit for a while, service and test it fully at home. Do that before you trust it in the field.
- My canister stove lights but the flame is weak. What is wrong?
- A weak or uneven flame on an otherwise working stove usually means a partly blocked jet, or a cold, low canister. Clean the jet as described above, and keep the canister warm against your body or in a shaded bag rather than iced by a night wind. If cleaning the jet does not restore a strong flame, check the seal and the canister connection. Do that before assuming the burner is at fault.
Keep reading
How we researched this
This care routine follows how burner jets, seals and fuel lines are generally meant to be maintained on camping stoves, and the fuel-storage safety guidance published by Australian state fire and gas authorities. It reports no original testing, and we do not claim to have serviced a specific product in a lab.
Sources reviewed
- Queensland Government — gas safety and LPG storage — safe storage and handling of camping fuel and canisters
- NSW Government — fire safety and household gas — ventilation and leak checks when handling fuel
Facts last checked 7 October 2026 · next review due 7 April 2027.