Can a generator in my garage cause CO poisoning?

Yes, running a generator in your garage can absolutely cause deadly carbon monoxide (CO) poisoning, even with the garage door open. This is one of the most dangerous mistakes homeowners make during power outages, and it kills people every year in New Brunswick and across Canada.

Why Garages Are Deadly for Generators

Portable generators produce carbon monoxide - a colorless, odorless gas that can kill you in minutes. Even with garage doors open, CO can accumulate to lethal levels because garages don't have adequate ventilation. The gas can also seep into your home through shared walls, doors, or any openings between the garage and living spaces. Many families have died from CO poisoning when generators were run in attached garages, even when they thought they had "enough" ventilation.

Safe Generator Placement Rules

Your generator must be at least 20 feet away from any windows, doors, or vents leading into your home. Place it outdoors on a level, dry surface where exhaust can freely disperse. Never run a generator in garages, basements, crawl spaces, sheds, or any partially enclosed area. Even covered patios or porches can trap deadly CO levels.

New Brunswick Winter Considerations

During ice storms - which are common in New Brunswick - it's tempting to bring generators closer to the house or into sheltered areas. Don't do it. Use a proper generator cover designed for outdoor use, or build a simple shelter that allows complete air circulation on all sides. The cold and snow are inconvenient, but CO poisoning is fatal.

Whole-Home Generator Solution

For safe, automatic backup power, consider a whole-home generator installation. These permanently installed units are positioned safely outside, automatically start during outages, and connect directly to your electrical panel. In New Brunswick's climate with frequent ice storms, many homeowners find this investment worthwhile. Professional installation typically costs $5,000-$15,000 depending on size and complexity, and requires both TSANB electrical permits and proper gas line connections.

Carbon Monoxide Safety

Install CO detectors in your home - they're required by code in New Brunswick for homes with fuel-burning appliances or attached garages. If your CO detector sounds during generator use, immediately move to fresh air and call 911. Early CO poisoning symptoms include headache, dizziness, and nausea - but by the time you notice these, you may already be in danger.

Emergency Electrical Safety

If you're using a portable generator during outages, never connect it directly to your home's wiring without a proper transfer switch installed by a licensed electrician. This prevents dangerous backfeed that can electrocute utility workers and damage your electrical system when power returns.

Need help finding an electrician for generator installation or transfer switch setup? New Brunswick Electrical can match you with licensed professionals who understand TSANB requirements and NB Power interconnection rules for safe backup power systems.