Carbon monoxide (CO) is often called the “silent killer” because it is an odorless, colorless gas that can be deadly if undetected. It is produced by burning fuel in appliances such as furnaces, water heaters, fireplaces, and gas stoves. Since CO has no smell or taste, many people don’t realize they are being exposed until symptoms appear. Protecting your home from carbon monoxide leaks requires awareness, proper equipment, and regular maintenance. In this blog, we’ll discuss the dangers of CO, common sources, detection methods, and the steps you should take to safeguard your home and family.
1. The Dangers of Carbon Monoxide Exposure Carbon monoxide poisoning occurs when CO gas builds up in an enclosed space, preventing the body from absorbing oxygen properly. Symptoms of CO poisoning can start mildly but worsen with prolonged exposure. Common symptoms include:
- Headaches and dizziness
- Nausea and vomiting
- Shortness of breath
- Confusion and blurred vision
- Loss of consciousness
- In extreme cases, prolonged exposure can lead to death
Infants, elderly individuals, and those with respiratory conditions are especially vulnerable to CO poisoning. Recognizing the signs early can save lives, which is why prevention and detection are crucial.
2. Common Sources of Carbon Monoxide in Homes Carbon monoxide can be produced by any fuel-burning appliance, especially if it is malfunctioning or improperly vented. The most common sources include:
- Faulty Furnaces or Heating Systems: Cracked heat exchangers or poor ventilation can cause CO buildup.
- Gas Stoves and Ovens Left On: Unvented or malfunctioning gas stoves can leak CO into the home.
- Blocked Chimneys or Vents: If chimneys or exhaust vents are blocked by debris, CO can accumulate indoors instead of being vented outside.
- Running Vehicles in Garages: Even with the garage door open, running a car inside an enclosed space can quickly lead to dangerous CO levels.
- Portable Generators or Space Heaters: Improper use of generators, especially indoors or too close to windows, can create CO buildup.
3. How to Detect Carbon Monoxide Leaks in Your Home Since CO is invisible and odorless, you must rely on detection devices and preventive measures to stay safe. Here’s how you can detect and prevent carbon monoxide leaks:
- Install Carbon Monoxide Detectors:
- Place CO detectors on every level of your home, particularly near bedrooms and sleeping areas.
- Test detectors monthly and replace batteries at least once a year.
- Replace CO detectors every 5-7 years, as sensors degrade over time.
- Schedule Regular HVAC and Appliance Inspections:
- Have your furnace, water heater, and any gas-burning appliances inspected annually by an HVAC professional.
- Ensure proper ventilation for all fuel-burning appliances and keep exhaust vents clear of blockages.
- Look for Physical Signs of CO Leaks:
- A yellow or flickering pilot light on a gas appliance instead of a steady blue flame.
- Soot buildup around gas appliances, fireplaces, or vents.
- Excess moisture or condensation on windows near combustion appliances.
- Watch for Unexplained Health Symptoms:
- If multiple household members experience flu-like symptoms that improve when leaving the house, CO exposure may be the cause.
- Pets appearing sluggish, vomiting, or having difficulty breathing could also be a sign of CO poisoning in the home.
4. What to Do If You Detect Carbon Monoxide If you suspect a carbon monoxide leak in your home, act immediately:
- Evacuate everyone from the house and move to fresh air.
- Call emergency services or your local gas company for assistance.
- Do not re-enter your home until authorities confirm it is safe.
- Have your heating system, appliances, and ventilation inspected before using them again.
Carbon monoxide poisoning is preventable with the right precautions. Installing CO detectors, maintaining HVAC systems, and ensuring proper ventilation can significantly reduce the risk of exposure. If it’s been over a year since your last furnace inspection, schedule a professional safety check with Air Support Heating and Air today to keep your home and family protected.
