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Every furnace produces carbon monoxide as a natural byproduct of the combustion process. If, for some reason, the gas escapes the furnace’s combustion chamber, it can cause serious health problems or even death. This makes a carbon monoxide detector a critical safety tool, but how far should a carbon monoxide detector be from the furnace to ensure it’s as effective as possible?
As the leader in expert furnace repair in Richmond Hill, our Georgia Air Cooling & Heating team puts customer safety first. That’s why we compiled this comprehensive safety guide to protecting your family from the effects of carbon monoxide with well-placed, functioning detectors. From where to put the detectors to preventing a toxic leak from happening in the first place, here’s everything you need to know.
Carbon Monoxide and Why It’s Dangerous
Carbon monoxide is a colorless and odorless gas that evenly disperses throughout a space. Any type of combustion engine, including furnaces, can produce the gas, but as long as there’s plenty of ventilation, it won’t cause health problems.
However, when the gas builds up and you breathe it in, it can prevent your blood from carrying oxygen to your brain and other vital organs. Some of the symptoms of carbon monoxide poisoning include:
- Headache
- Dizziness
- Confusion
- Fatigue
- Weakness
- Shortness of breath
- Nausea and vomiting
- Blurred vision
- Loss of muscle control
- Loss of consciousness
Pregnant women and their unborn babies, infants, and older adults are most at risk for severe poisoning. Long-term exposure to carbon monoxide can cause permanent brain damage or death if you don’t get to fresh air quickly. A working carbon monoxide detector is critical to ensuring safety and alerting you to excess gas in the air so you can get to safety as soon as possible.
Where To Place Carbon Monoxide Detectors
Since carbon monoxide can fill your house without you noticing until you experience symptoms of poisoning, you need to invest in multiple detectors to alert you to the gas wherever it’s present. Some rooms or areas may have more gas build-up than others, so a single alarm isn’t adequate for safety.
Putting a detector near the furnace is a top priority since this is the most likely source. Proper placement is critical to accurate detection, and many homeowners wonder, “How far should a carbon monoxide detector be from the furnace?”
You should install the device between 10 and 5 feet away from the furnace. However, you should avoid putting it near a duct, vent, or fan or in a drafty spot, as it could prevent it from accurately sensing carbon monoxide in the air.
Other Places To Install a Carbon Monoxide Detector
In addition to the furnace, you need detectors in other areas for maximum safety.
Sleeping Areas
Every bedroom or other space used for sleeping should have a detector within 15 feet of the door. One device is enough for several rooms if they are less than 30 feet apart. The furnace tends to run more at night, increasing the risk of a gas buildup, which can be fatal if you are asleep and don’t recognize the symptoms of poisoning.
On Every Level of Your Home
You need a detector on every level if you have a multi-story home. Carbon monoxide doesn’t always rise from floor to floor, so if it builds up on one level, it could create a dangerous trap for anyone who enters that area.
Near Interior Garage Doors
A detector within 10 feet of the interior door is a must-have if you have an attached garage. While you should never run a vehicle in a closed garage, carbon monoxide can still get into living areas when you run the engine with the door open.
Where To Avoid Placing Carbon Monoxide Detectors
Installing a detector in the wrong place can reduce its effectiveness and create a false sense of security. In addition to avoiding drafty places, don’t install the monitor in any of the following areas:
- Next to doors and windows
- Less than 6 inches away from the wall (when mounted on the ceiling)
- Less than 6 inches from the ceiling (when mounted on a wall)
- Excessively humid spaces like the bathroom or laundry room
- Direct sunlight or overly warm spots
- Dead air space
It’s also best to use separate smoke and carbon monoxide detectors rather than a combination device. Smoke rises, while carbon monoxide tends to remain closer to the floor. A detector that’s too high won’t register high gas levels, putting your family in danger. For the most accurate detection, mount it somewhere between knee level and midway up the wall.
How To Prevent Carbon Monoxide Accumulation in Your Home
Knowing the answer to “How far should a carbon monoxide detector be from the furnace?” is a good start toward making your home safer, but it’s even better when you prevent the gas from filling rooms in the first place. Regular maintenance and simple habits can help prevent a tragedy.
Invest in Furnace Maintenance
Annual professional maintenance by a certified HVAC technician is one of the best ways to keep your heating system in excellent condition and avoid a long list of problems. Maintenance includes a thorough inspection to ensure there aren’t any issues, like a cracked heat exchanger that will release the toxic gas into living areas. The technician will also check your carbon monoxide detectors to ensure they are in good working condition.
Avoid Blocking Fuel-Burning Appliances
Appliances like furnaces need plenty of clearance around them to ensure proper airflow and prevent carbon monoxide accumulation. Don’t store items or block vents on anything that uses fuel, including wood stoves and space heaters. Make sure the chimney is clean and free of obstructions, too.
Maintain the Detectors
Like smoke detectors, carbon monoxide alarms need regular maintenance. Twice a year, when you normally test the smoke alarms, change the batteries and test the carbon monoxide detector to ensure it will work when necessary.
Don’t “Warm Up” Vehicles in the Garage
If you have an attached garage, don’t let vehicles run longer than it takes to start the engine and pull out, even if the door is open. It doesn’t take long for carbon monoxide to fill the area, putting everyone in the vicinity in danger. You should never start a car in a closed garage.
What To Do When the Alarm Sounds
When you install a detector, familiarize yourself with the unit’s features and various alerts. Some models will make different noises or flash indicator lights when the battery is low, or the entire device is nearing the end of its operating life. Know which sound it will make when it actually detects carbon monoxide so you can respond appropriately.
If the alarm sounds, don’t ignore it or go looking for the source of the problem. Leave the area immediately and call 911 for help. If anyone in the area has symptoms of poisoning, seek prompt medical attention. In most cases, treatment with oxygen can stop the symptoms and prevent long-term effects.
Once emergency services address the immediate danger, which usually involves ventilating the space, have a qualified technician investigate to locate and determine the cause of the problem. Don’t return to your home until they repair the appliance that was leaking carbon monoxide to avoid further danger.
Don’t Overlook Safety: Invest in Quality Carbon Monoxide Detectors
Buying and installing reliable carbon monoxide detectors could save your life. In fact, Georgia law requires homeowners to have at least one working carbon monoxide detector in the house if they have any fuel-burning appliances, including furnaces, clothes dryers, and stoves.
You can purchase detectors at any home improvement or hardware store, often in a multi-pack, so you can protect multiple areas. Your local HVAC company can also help you acquire and install the alarms, ensuring they are in the proper locations, including 10 to 15 feet from the furnace.
Keep Your Family Safe With Help From Georgia Air Cooling & Heating
At Georgia Air Cooling & Heating, we care about our friends and neighbors in Richmond Hill, and that means providing the most efficient, affordable, and reliable HVAC services in the area. From comprehensive furnace maintenance and repair to replacements and installation, our NATE-certified technicians are standing by to keep your home and family warm and safe on even the chilliest days. We hope that this ultimate guide to carbon monoxide detectors helps you better understand their importance, the guidelines relating to how far should a carbon monoxide detector be from the furnace, and the other important places you need to monitor for everyone’s safety. If you have more questions or need assistance with other heating issues, like a repeated soft lockout on a furnace, call Georgia Air Cooling & Heating at (912) 513-3724 and schedule fast, convenient service when you need it the most.