Do not place the detector right next to or over a fireplace or flame producing appliance.
Carbon monoxide detector distance from furnace.
How far should a carbon monoxide detector be placed from a furnace or boiler.
Make sure you don t install any co detector too close to any appliance that generates heat.
Because carbon monoxide is slightly lighter than air and also because it may be found with warm rising air detectors should be placed on a wall about 5 feet above the floor.
You will need more than one detector.
If you have an enclosed garage directly attached t o the home then you should also place a.
How far should carbon monoxide detector be from furnace.
Keep at least 12 feet 3 7 m distance from the furnace or boiler if otherwise not specified in the user manual.
The main thing that you are trying to avoid here is false alarms.
Feet apart or less then place one in the middle.
If however they are more than 30 feet apart.
Keep units at least 20 feet 6 meters away from common sources of combustion particles.
Keep the area ventilated to prevent unwanted alarms.
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.
Homes with attached garages.
The detector may be placed on the ceiling.
According to this advice plugging the unit into a typical outlet near the floor creates very little safeguard against carbon monoxide poisoning in your home.
Detector within 10 feet of the internal door to your garage.