TORONTO, ON, January 12, 2026 – Carbon monoxide (CO) continues to be a leading cause of accidental poisoning in Ontario. With approximately 65% of all CO incidents occurring in people’s homes, TSSA urges everyone to be ‘WinterWise’ this season and learn about how they can protect themselves against this invisible, odourless and highly poisonous gas - often dubbed the ‘Silent Killer’.
As part of the Technical Standards and Safety Authority’s (TSSA’s) ongoing efforts to build CO awareness across the province, select communities will be receiving a copy of an important safety booklet – WinterWise – this week. This campaign, together with the ongoing public education efforts of community fire and emergency services departments, provides vital information to assist residents in reducing CO risks in their homes.
“During the cold weather months, there’s naturally an increased use of furnaces and fireplaces, and even though these fuel-burning appliances may be safely designed, they can emit deadly levels of CO gas if not properly installed, inspected and maintained regularly,” says Owen Kennedy, TSSA’s Director of Fuels Safety. “While CO presents serious hazards, residents can significantly reduce CO risks and any potential harm by taking these two important steps,” adds Kennedy.
- Have all fuel-burning appliances inspected annually through the services of a TSSA-registered fuel contractor: to find a TSSA-registered contractor near you, use the Find A Registered Fuels Contractor Tool at cosafety.ca.
- Install certified CO alarms in your home, regularly test and replace them in accordance with manufacturer’s instruction.
“It’s also important to remember to never use any fuel-burning appliances indoors that are specifically designed and approved for outdoor use only,” adds Kennedy.
Residents are encouraged to learn more about CO and other seasonal safety topics by reading and sharing the information in the WinterWise booklet and by visiting COsafety.ca – a website dedicated to providing critical CO safety information.
TSSA continues to partner with local fire and emergency services and other safety-minded organizations to deliver critical CO safety information to residents in communities across Ontario. The attached backgrounder provides additional information on carbon monoxide.
Stay one step ahead of CO – Beat the Silent Killer. COsafety.ca
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About TSSA
Throughout Ontario, the Technical Standards and Safety Authority (TSSA) administers provincial safety regulations and enhances public safety. TSSA regulates the safety of amusement devices, boilers and pressure vessels, elevating devices, fuels, operating engineers, and ski lifts. Its range of safety services includes public education, authorization, engineering design review, inspections, investigations, compliance support, enforcement, and prosecution activities. www.tssa.org
For more information or to arrange media availability, please contact: TSSA Alexandra Campbell Vice President, Communications, Stakeholder Relations and Customer Service Technical Standards and Safety Authority Telephone: 416-734-2728 Email: media@tssa.org