Where Should A Carbon Monoxide Detector Be Placed. When installing an alarm on the wall the top edge of alarms should be placed between 4 inches 100 mm and 12 inches 300 mm from the wallceiling line. In close proximity to any fuel-burning appliance.
Carbon monoxide CO and combination alarms should be mounted in or near bedrooms and living areas on a wall place six inches below the ceiling to six inches above the floor. One of the reasons carbon monoxide is so dangerous is because its colorless and odorless making it almost impossible to detectunless you have a carbon monoxide detector. When installing an alarm on the wall the top edge of alarms should be placed between 4 inches 100 mm and 12 inches 300 mm from the wallceiling line.
In short you should place your carbon monoxide detector at least 15 feet away from your furnace and this same rule applies to all other combustion appliances.
Any furnace is going to emit some of this gas and if it is too close you are likely to get some false alarms. Because CO has nearly the same specific gravity as air the alarms can be located either low for plug-in units or high on ceilings or 6 below ceiling on walls avoid corners where air is dead. If you really want peace of mind install a CO alarm in each bedroom and one additional on each floor of the home basement included. In short you should place your carbon monoxide detector at least 15 feet away from your furnace and this same rule applies to all other combustion appliances.
