Generator Safety: What You Must Know Before You Start
Portable generators are one of the most useful pieces of equipment you can own — and one of the most dangerous if used incorrectly. Every year, people die from carbon monoxide poisoning caused by generators running indoors or too close to windows. Don't be a statistic. Follow these eight rules every single time.
Rule 1 — Never Run a Generator Indoors
This includes garages, basements, sheds and outbuildings. Carbon monoxide (CO) is colourless and odourless. It builds up silently and kills within minutes at high concentrations. The only safe location is outdoors, at least 6 metres from any window, door or vent.
Rule 2 — Install CO Detectors
Even with outdoor placement, CO can drift indoors. Install battery-powered CO detectors on every floor of your home. Replace batteries annually. Many modern generators (including URBEXIA models) include a built-in CO sensor that shuts the engine down automatically — a feature worth paying for.
Rule 3 — Never Refuel While Running
Petrol spilled onto a hot engine can ignite instantly. Always switch off the generator and let it cool for at least 2 minutes before refuelling. Store petrol in approved containers away from the generator.
Rule 4 — Don't Overload It
Running a generator at or above its maximum rated wattage causes overheating. Use the wattage guide method (see our separate article) to size your load correctly. Never connect an overloaded circuit.
Rule 5 — Use a Transfer Switch for Home Wiring
Connecting a generator directly to your home's circuit breaker panel without a proper transfer switch creates "back-feed" — live current flowing backwards into the grid. This can electrocute utility workers. A licensed electrician should fit a transfer switch before you connect any generator to home wiring.
Rule 6 — Keep It Dry
Generators are not waterproof. Running in rain or on wet ground risks electric shock. Use a commercially designed generator canopy or cover, or build a simple 3-sided shelter that allows ventilation without exposing the unit to direct rain.
Rule 7 — Ground It Properly
Many generators need to be connected to an earth stake when used with certain equipment. Check your manual and local electrical regulations. Improper grounding can cause shocks or equipment damage.
Rule 8 — Service It Regularly
A generator that hasn't been started in 6 months may fail when you need it most. Run it under load for 30 minutes every 3 months. Change oil after the first 20 hours on a new unit, then every 100 hours or annually.
FAQ
How quickly can CO from a generator be dangerous?
In an enclosed space, dangerous concentrations can build within 5 minutes. At very high concentrations, unconsciousness occurs before you can react. This is why prevention is everything.
Is a generator canopy enough protection from rain?
A 3-sided canopy that blocks rain from above and sides while allowing airflow is safe. Never run a generator inside a fully enclosed tent or shelter.
