Our furnace tune-ups, CO detector installations, and emergency heating repairs help ensure your home is warm and your family is safe all winter.
We’ve experienced cold weather this winter in St. Louis, and as we continue to, we rely heavily on our heating systems. However, with increased furnace use comes an often-overlooked danger—carbon monoxide (CO) poisoning.
At Thomas Hoffmann Air Conditioning & Heating, we prioritize your safety and want to ensure that you and your family are protected from this silent, deadly threat.
What Is Carbon Monoxide and Why Is It Dangerous?
Carbon monoxide is an odorless, colorless, and tasteless gas produced by burning fuels like natural gas, propane, oil, and wood. When inhaled, CO interferes with your body’s ability to transport oxygen, leading to serious health risks.
Common Sources of Carbon Monoxide in Your Home
CO can accumulate due to malfunctioning or improperly vented heating equipment. Some of the most common sources include:
- Furnaces and Boilers – A cracked heat exchanger or a blocked vent can cause CO leaks.
- Gas Water Heaters – Poor ventilation can allow CO to build up indoors.
- Fireplaces & Wood Stoves – If chimneys or flues are blocked, CO can seep into your home.
- Gas Stoves & Ovens – Using a gas oven for heat is extremely dangerous.
- Generators & Space Heaters – Never use gas-powered generators or unvented space heaters.
Symptoms of Carbon Monoxide Poisoning:
Early signs of CO poisoning can be mistaken for the flu or other common illnesses. If you experience these symptoms—especially while using a fuel-burning appliance—it could be a sign of CO exposure:
- Headaches
- Dizziness
- Nausea or vomiting
- Confusion
- Shortness of breath
- Fatigue
In severe cases, prolonged exposure can lead to unconsciousness, organ damage, or even death.
How to Prevent Carbon Monoxide Poisoning
- Schedule Annual Furnace Maintenance – Regular heating system inspections by professionals help ensure your furnace operates safely and efficiently. Our Thomas Hoffmann Air Conditioning & Heating team will check for cracks, leaks, and ventilation issues to keep your home safe.
- Install Carbon Monoxide Detectors – Place CO detectors on every floor of your home and near bedrooms. These alarms can detect CO leaks and alert you before levels become dangerous.
- Test detectors monthly and replace batteries at least once a year.
- Replace CO detectors every 5-7 years as sensors degrade over time.
- Keep Vents and Chimneys Clear – Blocked vents or chimneys can trap CO inside your home. After heavy snow or storms, check that your furnace exhaust pipes and chimney flues are free of debris or ice buildup.
- Never Run Engines Indoors – Running a car, generator, or grill in an enclosed space—like a garage—can lead to fatal CO buildup. Always use these appliances outside and away from windows or vents.
- Be Cautious with Space Heaters & Fireplaces – Open the damper to allow proper ventilation if using a fireplace. Avoid using unvented gas space heaters for extended periods, and never leave them running while sleeping.
What to Do If You Suspect Carbon Monoxide Poisoning
If your CO alarm goes off or you experience symptoms of CO exposure:
🚨 Leave the house immediately.
🚨 Call 911 and seek fresh air.
🚨 Do not re-enter the home until professionals confirm it is safe.
🚨 Have your HVAC system inspected before using it again.
Protect Your Family with Professional HVAC Services
At Thomas Hoffmann Air Conditioning & Heating, we are committed to protecting St. Louis homeowners from carbon monoxide dangers. Our furnace tune-ups, CO detector installations, and emergency heating repairs help ensure your home stays warm and secure all winter.
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At Thomas Hoffmann Air Conditioning & Heating, we pride ourselves in being a locally owned and operated HVAC company. With more than 30 years of experience and a master technician and mechanical engineer as our owner, we can replace, repair, and provide maintenance for your business or home’s HVAC system.