As snow piles up outside, it could be silently trapping a deadly gas inside your home—carbon monoxide. This invisible, odorless gas is known as the “silent killer,” and when furnace vents, chimneys, or generators become blocked by snow and ice, toxic fumes have nowhere to escape. The result can be life-threatening carbon monoxide poisoning for you and your family.
The Dangers of Carbon Monoxide
Carbon monoxide (CO) is produced when fuel-burning appliances—such as furnaces, fireplaces, and generators—don’t vent properly. When these systems become obstructed, CO can build up inside the home, causing symptoms like dizziness, headaches, confusion, and even unconsciousness. Without immediate action, prolonged exposure can be fatal.
Why Snow Increases the Risk
During heavy snowfall, drifts and ice accumulation can block the exhaust vents of furnaces, water heaters, and fireplaces, trapping CO indoors. Similarly, portable generators used during winter power outages must be properly positioned outside, as running them in enclosed spaces—even garages or covered porches—can be deadly.
Preventing Carbon Monoxide Poisoning
To keep your home safe during winter storms, follow these essential precautions:
✅ Keep Vents Clear – Regularly check and clear snow away from furnace vents, chimneys, and dryer exhausts.
✅ Use Generators Safely – Always run generators at least 20 feet away from windows, doors, and vents. Never operate them inside or in an attached garage.
✅ Install CO Detectors – Place carbon monoxide detectors on every level of your home, especially near sleeping areas. Test them regularly and replace batteries as needed.
✅ Inspect Heating Systems – Have your furnace and chimney inspected annually to ensure proper ventilation.
✅ Be Aware of Symptoms – If you experience headaches, nausea, dizziness, or confusion, leave your home immediately and call 911.
A Silent Threat That Requires Action
With winter storms bringing deep snow and extreme cold, the risk of carbon monoxide poisoning rises. Taking a few simple precautions can prevent a dangerous buildup and keep your household safe. Stay vigilant, stay warm, and most importantly—stay safe this winter.