A portable generator gives you power anywhere, which is exactly why it deserves respect. Run it the wrong way, and it becomes the most dangerous thing in your camp. Here is how to operate yours safely, from carbon monoxide and refuelling to sizing, wiring, and storage.
Every summer and every storm season, the same scene plays out across Australia. The mains drop out at home, or a campsite settles in for the night, and someone reaches for a portable generator. Within minutes, there is light, a running fridge, and a phone back on charge. It feels almost domestic.
That is the problem. A generator looks like an appliance, but it is a petrol engine producing three things at once: hot exhaust, an invisible gas, and live electricity. The incidents that put people in the hospital are almost never freak accidents. They are a generator tucked into a garage to keep it out of the rain, a hot refuel done by torchlight, or a lead run into the wrong socket.
We have spent more than a decade kitting out campers, caravanners, and 4WD owners, and we have learned which habits keep people safe and which ones generate the call to our support line. The 10 rules below are the ones we give every customer. They are grounded in how these machines behave in the field, not copied from the back of a manual, and they apply whether you are running a generator at a free camp or as backup power at home.
Carbon Monoxide Is the Risk That Actually Kills, So Manage the Air First
Of every hazard on this list, the one that quietly claims lives each year is the one you cannot see or smell. A petrol engine produces carbon monoxide, an odourless gas that displaces the oxygen you breathe, and it accumulates far faster in a confined space than most people expect. The first three rules all protect the air around you.
1. Never run a generator indoors or in an enclosed space. That means no garages, no sheds, no annexes, and never under the eaves of your van or home. An open door or window is not enough, because the exhaust still collects faster than it clears. If it is running, it is running outside.
2. Put open air and distance between you and the exhaust. Set the generator on firm, level ground, well clear of any tent, caravan, or building, with the exhaust pointing away from where people sleep and sit. Keep the airflow around it unobstructed, and never aim the outlet toward an open window or an annexe.
3. Fit a carbon monoxide alarm and learn the warning signs. A battery-powered carbon monoxide alarm in your van or tent is inexpensive insurance against the one risk you cannot detect yourself. Headache, dizziness, nausea, and drowsiness near a running engine are red flags. Get into fresh air immediately, and do not go back to investigate.
The rule of thumb we give customers is blunt on purpose: if you can smell exhaust, you are already too close. Treat carbon monoxide as the default danger, and the rest of safe operation tends to fall into place.
VoltX VX6600 2-Wire Inverter Generator
Petrol and Heat Do Not Forgive Mistakes, So Treat the Fuel with Respect
A generator that has been running is hot, and petrol vapour ignites with very little encouragement. Most generator fires we hear about trace back to a handful of repeatable errors around fuel and weather. None of them is difficult to avoid once you know the pattern.
4. Refuel only with the engine off and cool. Never top up a running or hot unit. Petrol splashed onto a hot exhaust or muffler can flash into flame in an instant. Switch the generator off, give it time to cool, and use a funnel so you are not chasing spills in the dark.
5. Store and carry fuel the safe way. Keep petrol in an approved, sealed container, away from the running unit, away from any ignition source, and away from where you sleep. Wipe up spills before you start, and keep naked flames and cigarettes well clear of both the generator and the fuel.
6. Keep it dry and out of the weather. Never operate a generator in rain or snow, because water and electricity together are a lethal combination. If you genuinely need power in wet conditions, run it under a generator cover or open-sided tent made for the purpose, one that still allows full ventilation and exhaust clearance. Never bring it inside an enclosed shelter to escape the weather, which simply trades a fire risk for a carbon monoxide one.
Notice how these rules interlock. The same instinct that makes people drag a generator under cover in a downpour is the instinct that leads to the most serious carbon monoxide incidents. Plan your wet weather setup before you leave, not at 10 pm in the rain. Petrol also degrades over months, so for a generator that lives in the shed for emergencies, use fresh fuel or a stabiliser and run it briefly every so often to keep it ready when you need it.
Gentrax GS2-5000IE 4.8kW Portable Inverter Generator
Power Is Only Safe When the Machine Matches the Load, and the Wiring Is Right
A generator that is too small for the job, or connected the wrong way, is both a reliability problem and a safety one. Two rules cover the bulk of it, and getting them right also protects the expensive gear you bought the generator to run.
7. Size it for the surge, not just the running load. Add up the running wattage of everything you intend to power at once, then check the starting or surge wattage of anything with a motor or compressor. Appliances such as air conditioners and fridges briefly draw far more than their running figure when they kick in. As a working guide, an air conditioner, fridge, and microwave together point you toward roughly 3,000W of clean output. Undersize the generator and you force it to overload, which stresses the unit and can damage your appliances.
8. Connect appliances safely and never feed power back into the mains. Plug devices in with correctly rated leads, ideally through a residual current device for an added layer of protection. Do not wire a generator into your home power points yourself. Feeding power back into the household wiring is dangerous to you and to anyone working on the network, and any permanent home connection should be installed by a licensed electrician.
Weight is the safety factor people forget until they hurt their back. It pays to match the machine to how you will actually move and place it. Our bestselling Gentrax 3500W weighs around 28 kg, a manageable lift onto level ground, while the heavier 6000W unit, such as the Gentrax GTX6600 Inverter Generator, is closer to 89 kg and needs wheels, a ramp, or a second pair of hands to carry safely. Set whichever you choose on stable, level ground so it cannot tip, slide, or vibrate loose while it runs.
Here’s what one of our customers said about the Gentrax GT3500:
"Generator arrived within days of ordering. Oil and fuel added and just 2 pulls on the rope it fired up flawlessly. Easy to use and understand unit seems robust and good quality . Will be using it to keep my house batteries on caravan charged as there is no 240v power where it's stored.very happy with this purchase."
This is also where the type of generator earns its keep. Portable inverter generators produce a pure sine wave output, the clean, stable power that sensitive electronics like phones, laptops, and modern fridges are designed to receive. Cheaper conventional generators can deliver rougher power that shortens the lifespan or outright damages the equipment. Choosing an inverter model removes a whole category of risk before you have pulled the cord.
Gentrax GT800 Inverter Generator
Good Operators Look After Their Neighbours and Their Machines
The final cluster of rules is about being a considerate and prepared operator, which in practice turns out to be the same thing as being a safe one. These are the habits that separate people who run a generator for years without incident from those who learn the hard way.
9. Mind the noise and the people around you. In a caravan park or campground, noise is both a courtesy issue and a safety one, because a generator droning through the night encourages people to move it somewhere quieter and less safe. Choose a quieter generator model with a sound-reducing casing, observe posted quiet hours, and position the unit so the noise and exhaust face away from your neighbours.
10. Maintain it, store it well, and know when not to run it. Cover the generator and store it in a dry, well-ventilated space when it is not in use; clean the exterior, apply a rust inhibitor, and look it over before each trip for fuel leaks, loose fittings, or damaged leads. A neglected machine is the one most likely to leak, run hot, or fail when you depend on it. On a day of total fire ban, generator use may be restricted or banned outright, so check your local fire authority before you start. Choosing not to run it, in a downpour, in an enclosed space, or simply when you are too tired to set it up properly, is sometimes the most experienced decision you can make.
The best operators we deal with treat a generator as a piece of machinery that demands respect, not as a power point on legs. That mindset, more than any single rule, is what keeps people safe.
TrekGen 3500 Inverter Generator
Choosing a Generator That Is Built to Be Run Safely
Safe operation starts before you switch anything on, with the machine you choose. For most campers, caravanners, and households that need backup power, an inverter model is our default recommendation because it runs cleaner and quieter and removes several risks at the source.
We have spent more than a decade supplying camping and outdoor power. Our inverter generators use EURO 5-certified engines and produce pure sine wave output, plus orders are dispatched within 24 hours, which matters when a trip or a storm is bearing down. If you are weighing up which model suits your setup, browse the inverter generator range or reach out to our team for assistance. It is worth checking the warranty terms and the support on offer before you buy, because a generator you can get help with is a safer long-term purchase than the cheapest unit online. Pick the right machine, follow the 10 rules above, and a portable generator is one of the safest, most useful things you can pack.
