New carbon monoxide alarm rules coming to in 2026: Here’s what you need to know

Carbon monoxide detector (file image)

Big changes are coming to how Ontario residents protect themselves from carbon monoxide inside their homes.

Starting Jan. 1, 2026, updates to the Ontario Fire Code will require additional carbon monoxide (CO) alarms in all residential spaces with potential sources of the deadly gas.

Tay Township Fire and Emergency Services is issuing a reminder to homeowners and tenants that any dwelling with a fuel-burning appliance, fireplace, or attached garage must be equipped with a CO alarm next to every sleeping area, as well as one on each storey that doesn’t have a bedroom.

“Carbon monoxide is known as the silent killer because it is odourless, tasteless and colourless.These properties make it undetectable without a proper alarm, and exposure can be fatal,” said Tay Township Fire Chief Shawn Aymer. “This safety enhancement to the Ontario Fire Code emphasizes the importance of having working CO alarms to protect everyone in your home.”

Officials say the goal is to ensure consistent protection in all types of residential settings — from single-family homes to apartment buildings.

Tay Township Fire and Emergency Services is encouraging residents to take a proactive approach by checking their alarms now and installing any additional units needed to meet the upcoming standard.

Fire officials say ensuring proper alarm placement before the new rules take effect will not only help residents stay compliant but could also save lives.