When we think about indoor air quality (IAQ), we often focus on dust, allergens, and humidity levels. However, one of the most dangerous—and often overlooked—threats to your home's air quality is gas and carbon monoxide (CO) leaks. These invisible, odorless hazards can have serious health consequences if not detected early. Here’s what you need to know to keep your home safe.
What Is Carbon Monoxide and Why Is It Dangerous?
Carbon monoxide (CO) is a colorless, odorless gas produced by burning fuel in appliances such as furnaces, fireplaces, stoves, water heaters, and gas dryers. When these appliances aren’t properly maintained or vented, CO can build up indoors, posing a serious health risk.
Since CO is undetectable without specialized equipment, it has earned the nickname “the silent killer.” Breathing in even small amounts can lead to symptoms like headaches, dizziness, confusion, nausea, and, in extreme cases, unconsciousness or death.
Common Sources of Gas & CO Leaks
Many household appliances and systems can produce carbon monoxide if they are malfunctioning or not vented correctly:
-
Gas furnaces – A cracked heat exchanger or poor ventilation can lead to CO leaks.
-
Fireplaces & wood stoves – Incomplete combustion or blocked chimneys can cause CO buildup.
-
Gas stoves & ovens – Using these appliances without proper ventilation can increase CO levels indoors.
-
Water heaters – Older or poorly maintained models can develop dangerous leaks.
-
Gas dryers – Faulty vents can allow CO to enter your home.
-
Generators & space heaters – Using these in enclosed spaces is extremely hazardous.
How to Prevent Gas & Carbon Monoxide Leaks
1️⃣ Install Carbon Monoxide Detectors
-
Place CO detectors on every level of your home, especially near bedrooms.
-
Test detectors monthly and replace batteries at least once a year.
-
Replace the entire unit every 5-7 years, as sensors degrade over time.
2️⃣ Schedule Regular HVAC & Appliance Inspections
-
Have a professional inspect your furnace, water heater, and gas appliances annually.
-
Ensure venting systems are clear and functioning properly.
3️⃣ Practice Safe Appliance Use
-
Never use a gas stove or oven as a heating source.
-
Keep your fireplace flue open when in use.
-
Always operate generators outdoors, away from windows and doors.
4️⃣ Know the Signs of a Leak
-
Unexplained headaches, dizziness, or nausea when indoors.
-
A pilot light that frequently goes out.
-
Soot or yellow stains around gas appliances.
What to Do If You Suspect a Gas or CO Leak
🚨 If you suspect a carbon monoxide leak:
-
Evacuate immediately and get fresh air.
-
Call 911 or your local emergency services.
-
Do not re-enter the home until authorities confirm it is safe.
🚨 If you smell gas (rotten egg odor):
-
Leave the house immediately.
-
Do not use electronics, light switches, or phones—a spark could ignite the gas.
-
Call your gas company or 911 from a safe distance.
Final Thoughts
Gas and carbon monoxide leaks are silent threats that can put your family at risk. By installing CO detectors, maintaining appliances, and staying aware of potential hazards, you can improve your home’s indoor air quality and keep your loved ones safe.
Has your furnace or water heater been inspected this year? Don’t wait—schedule a professional check-up today!
