Carbon Monoxide Dangers
CO is odorless and colorless. Low levels cause flu-like symptoms; high levels can be fatal. Any fuel-burning appliance can produce CO if malfunctioning.
Sources of CO in Homes
Gas furnaces, water heaters, stoves, fireplaces, and attached garage vehicles can all produce CO. Proper venting and operation prevent problems.
Furnace-Related CO Risks
Cracked heat exchangers allow combustion gases into living spaces. Blocked flues prevent proper venting. Poor maintenance increases failure risks.
CO Detector Placement
Install CO detectors on every floor, near bedrooms, and near fuel-burning appliances. Follow manufacturer instructions for mounting height.
If Your Detector Alarms
Immediately move everyone outside. Call 911. Don't re-enter until cleared by emergency responders. Seek medical attention if anyone has symptoms.
Preventive Measures
Annual furnace inspection catches CO risks. Never block vents or flues. Don't use generators or grills indoors. Ensure adequate combustion air supply.