If however they are more than 30 feet apart.
Carbon monoxide detector distance from furnace.
If you have an enclosed garage directly attached t o the home then you should also place a.
Keep at least 12 feet 3 7 m distance from the furnace or boiler if otherwise not specified in the user manual.
Avoid kitchens garages and furnace rooms.
The detector may be placed on the ceiling.
Feet apart or less then place one in the middle.
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.
How far should carbon monoxide detector be from furnace.
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.
Keep the area ventilated to prevent unwanted alarms.
The main thing that you are trying to avoid here is false alarms.
Detector within 10 feet of the internal door to your garage.
You will need more than one detector.
Homes with attached garages.
In small homes where 20 foot distance is not possible place the alarm as far away from fuel burning sources as possible.
How far should a carbon monoxide detector be placed from a furnace or boiler.