Most Madison-area homes have at least one appliance that burns fuel, like a furnace, water heater, or gas stove. When combustion or venting problems occur, that equipment can release carbon monoxide (CO). You can’t see, smell, or taste it, so it often goes unnoticed without a working alarm.
Many people think of CO as a winter worry, but the risk doesn’t end with the heating season. Our companion video, linked further down this page, reinforces why carbon monoxide awareness matters all year, not just when the furnace is running.
What Makes Carbon Monoxide So Dangerous in a Home?
When you breathe in CO, it latches onto the hemoglobin in your red blood cells, the same protein that’s supposed to carry oxygen. That leaves less room for oxygen, and your brain, heart, and other organs start to go without.
Exposure can lead to CO poisoning, with symptoms that are often mistaken for the flu. Mild symptoms include headaches, dizziness, nausea, and shortness of breath. As exposure continues, symptoms can worsen to include confusion, blurred vision, and loss of consciousness. In severe cases, CO poisoning can cause permanent organ damage or death.
Which Home Systems Can Create Carbon Monoxide Risk?
Any appliance that burns fuel can produce carbon monoxide if it isn’t operating correctly. Poor ventilation can cause the same problem.
- Furnaces and boilers
- Gas or oil water heaters
- Gas fireplaces
- Gas stoves and ovens
- Gas clothes dryers
- Portable generators
- Vehicles running in an attached garage
- Blocked chimneys or flue vents
- Charcoal grills or fuel-burning space heaters used indoors
- Any other fuel-burning equipment
Where Should Carbon Monoxide Alarms Be Installed?
Working carbon monoxide alarms give you the earliest warning of a problem. The National Fire Protection Association (NFPA) recommends one on every level of your home, including the basement, and one outside each separate sleeping area.
For added safety, consider installing alarms inside each bedroom too. Follow the manufacturer’s instructions for placement, as some plug into outlets while others mount on the wall.
What Should You Do If a Carbon Monoxide Alarm Goes Off?
Never ignore a carbon monoxide alarm or try to find the source of the problem yourself. Get everyone out of the house, including pets, and move to fresh air. Once you’re safely outside, call 911 or your local fire department.
Do not go back inside until emergency responders have declared the home safe. After that, schedule an emergency service call so a professional can find and fix the source.
Why Furnace and Heating Maintenance Matter for CO Safety
Routine professional maintenance for your heating systems is one of the most effective ways to prevent CO problems. An annual tune-up covers the parts of the system that matter most for carbon monoxide safety. A technician typically inspects the burners and flue and looks over the heat exchanger for cracks. Regular heating maintenance and professional furnace inspections can catch potential hazards before they put your family at risk.
How Combustion, Venting, and Heat Exchanger Problems Can Create Risk
If combustion is incomplete due to dirty burners or a poor fuel-to-air mixture, the system can produce higher levels of CO. Venting problems can cause similar trouble. If animal nests or soot block the flue or chimney, exhaust gases can back up into your home instead of escaping outside.
The heat exchanger matters, too. This metal chamber keeps combustion gases separate from your home’s air, and a crack can let CO travel through your ductwork.
What Warning Signs Can Point to a Carbon Monoxide Problem?
A few subtle signs can also point to a CO problem. Look for streaks of soot or dark staining around your furnace, boiler, or water heater. You might also notice excess condensation on interior windows or air that feels stuffy and stale. A pilot light that keeps going out is another red flag, as is a yellow or orange flame instead of a crisp blue one.
Why Carbon Monoxide Awareness Matters Outside of Heating Season
Furnaces get most of the attention, but they aren’t the only source of CO. Gas water heaters, stoves, and clothes dryers run all year, and a problem with any of them can create a risk
reate a risk at any time. For a quick refresher to share with family, watch the companion video.
Seasonal activities bring their own risks. Summer storms can knock out power across the Madison area, and portable generators produce large amounts of CO. Always run a generator outdoors, far from windows and doors. Running a car in an attached garage, even with the door open, can also let dangerous levels of CO seep inside.
When Should You Call an HVAC Professional About CO Concerns?
Contact an HVAC technician any time you have concerns about carbon monoxide safety. That includes after a CO alarm has sounded and your home has been cleared. Warning signs or unusual noises from a fuel-burning appliance are also good reasons to call. For urgent problems, our emergency heating service can help.
If anyone in your household has persistent flu-like symptoms that ease when they leave the home, have your home and appliances checked right away. A professional inspection through our furnace services can uncover issues like a cracked heat exchanger that need prompt furnace repair.
Protect Your Family From Carbon Monoxide With All Comfort Services
Keeping your home safe from carbon monoxide starts with working CO alarms and regular maintenance for your fuel-burning appliances. At All Comfort Services, our certified technicians perform thorough inspections and tune-ups to help keep your heating equipment running safely.
If you have concerns about carbon monoxide safety or need a furnace inspection in Madison, WI, contact us to schedule service. We’ll help keep your family safe all year.
FAQs
Can you smell carbon monoxide in your home?
No, you cannot smell, see, or taste carbon monoxide. That’s why a working CO alarm is so important.
What should I do if my carbon monoxide detector goes off?
Get everyone out of the home right away and call 911 from a safe location outside. Do not go back in until emergency personnel have cleared the property.
Can a furnace cause carbon monoxide problems?
Yes. A furnace that is malfunctioning, has a blocked vent, or has a cracked heat exchanger can release carbon monoxide into your home.
How often should carbon monoxide detectors be replaced?
Most CO detectors last five to 10 years. Check the replacement date printed on the back of the unit. Test them monthly, and if your model uses replaceable batteries, change them at least once a year.
