Carbon monoxide (CO) poisoning is a silent threat that causes hundreds of hospitalizations and fatalities each year. As an invisible, odorless, and tasteless gas, carbon monoxide is impossible to detect without the help of a reliable carbon monoxide alarm. Installing a detector properly is one of the most important steps you can take to protect your family and ensure your home is safe.
Carbon monoxide is a byproduct of burning fuel. It can come from everyday appliances such as:
Gas stoves
Furnaces
Water heaters
Fireplaces
Vehicles in attached garages
Without proper ventilation, carbon monoxide can accumulate indoors and quickly become hazardous—even deadly.
A carbon monoxide detector is designed to alert you when CO levels reach dangerous thresholds. Early detection is key to CO poisoning prevention, giving you and your family time to evacuate and take action before symptoms arise.
In Ontario, carbon monoxide detectors are legally required in all homes that have:
Fuel-burning appliances
Fireplaces
Attached garages
The Ontario CO laws also specify where detectors should be placed and the standards they must meet. To ensure your home is compliant and safe, a professional electrical home safety inspection is highly recommended.
Proper placement of detectors can make all the difference. Here are best practices for placement:
Every level of your home
Outside all sleeping areas
Near major fuel-burning appliances
At breathing level—ideally eye-level on a wall
Avoid placing them near open windows, doors, vents, or other areas where air circulation may interfere with accurate readings.
Most CO detectors last between 5 to 7 years. After that, the internal sensors can degrade, compromising reliability. Always refer to the manufacturer’s label or manual for exact replacement timelines.
To ensure optimal performance:
Test your detector once a month
Replace batteries twice a year (unless hardwired)
Dust gently to prevent blockage
Replace immediately if the unit malfunctions or fails tests
Routine CO detector maintenance is essential for continuous protection.
Many homeowners can handle battery-powered CO detectors on their own. However, for hardwired models or combination detectors, professional installation is recommended. Incorrect installation could mean the detector doesn’t function when it’s needed most.
Hiring a licensed electrician ensures:
Proper placement based on your home’s layout
Accurate wiring and secure mounting
Compliance with Ontario CO laws
A full inspection of possible CO sources in your home
Need help? Check out our full list of electrical services for expert assistance.
These are not interchangeable:
A smoke detector identifies fire and smoke particles
A CO detector senses carbon monoxide gas
For maximum safety, use both.
Many modern devices combine both functions. These are ideal for saving space and simplifying maintenance. Just be sure to install them in appropriate locations that serve both purposes effectively.
Installing a carbon monoxide detector is a small effort with life-saving potential. With the right device, proper placement, and regular maintenance, you significantly reduce the risk of carbon monoxide exposure in your home.
📞 Contact SGF Electric for professional installation, inspections, or help ensuring your home meets Ontario safety standards.
Protect your loved ones. Invest in safety. Install your carbon monoxide detector today.