New Carbon Monoxide Alarm Rules Take Effect January 1, 2026

Date: December 16, 2025

Prince Edward County Fire & Rescue is reminding residents that updated carbon monoxide (CO) alarm requirements will come into force on January 1, 2026, bringing important changes to how homes across the County must be equipped.

The updates to the Ontario Fire Code are aimed at improving public safety and reducing the risk of carbon monoxide poisoning, a danger often referred to as the “silent killer” because it cannot be seen, smelled, or tasted.

What’s Changing in 2026

Under the new rules, property owners will need to ensure that carbon monoxide alarms are installed in additional locations throughout their homes.

Starting January 1:

• A carbon monoxide alarm must be installed on every storey of a home that does not contain a sleeping area, such as a main floor or basement.

• A carbon monoxide alarm must be placed near every sleeping area, ensuring protection while occupants are most vulnerable.

• In multi-unit residential buildings, alarm requirements depend on whether units contain fuel-burning appliances or are connected to attached garages, and may also apply to shared corridors served by fuel-fired equipment.

Homeowners are responsible for making sure their own homes comply, while landlords are responsible for rental properties.

Why Carbon Monoxide Alarms Matter

Carbon monoxide interferes with the body’s ability to transport oxygen and can cause symptoms such as headaches, dizziness, nausea, and confusion. In severe cases, exposure can be fatal — sometimes without warning.

Even homes that already have CO alarms may require additional units to meet the new placement standards. Not having the required alarms is considered an offence under the Ontario Fire Code.

Common Sources of Carbon Monoxide

Carbon monoxide can be produced by many everyday household systems, including:

• Furnaces, fireplaces, and hot water heaters

• Gas stoves, grills, and space heaters

• Vehicles or gas-powered equipment operated in attached garages

Blocked vents, dirty chimneys, or snow-covered exhausts can also lead to dangerous CO buildup if not properly maintained.

Fire & Rescue Safety Tips

Prince Edward County Fire & Rescue encourages residents to:

• Test all smoke and carbon monoxide alarms regularly

• Replace alarms as recommended by the manufacturer

• Have fuel-burning appliances inspected annually by a qualified technician

• Keep vents and exhaust pipes clear of snow, debris, and obstructions

Residents with questions about the new requirements can contact Prince Edward County Fire & Rescue at 613-476-2345 or fire@pecounty.on.ca.

Taking time now to check and update alarms can help ensure homes are ready for the new regulations and more importantly, help keep families safe.

---