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- Published 16th August 2022
Installation of alarms
Smoke and heat alarms should be fitted as per manufacturer’s guidance, which normally reads
All carbon monoxide (CO) detectors should be either:
- ceiling mounted and at least 300 mm from any wall (unless otherwise indicated by the manufacturer) or
- wall mounted and positioned at least 150 mm below the ceiling and higher than any door or window in the room (unless otherwise indicated by the manufacturer)
However, carbon monoxide is a dense heavy gas, and therefore tends to drop down in a room. Therefore the lower the alarm can be mounted, taking into account the possible source of CO in a room, the better.
This ensures that it is most likely to be detected at an early enough stage