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Ideally, a carbon monoxide alarm should be installed in every room containing a fuel-burning appliance, and one in every
bedroom.
However, if the number of carbon monoxide alarms available is limited, the following guidelines should be considered when
choosing the best places to install an alarm(s):
• If there is an appliance in a bedroom, a CO monitor should be installed.
• Install an alarm in rooms containing a flueless or open-flued appliance.
• Install an alarm where residents spend most of their time.
• In a studio apartment, a CO alarm should be placed as far away from the cooking appliances as possible, but close to where
the person sleeps.
• If the appliance is placed in a room not normally used (such as a boiler room), the CO alarm should be placed just outside of
this room so that the alarm can be heard more easily.
1.
Installing a CO alarm in a room with a fuel-burning appliance (see Figure 1):
• If it is mounted on a wall, it should be installed at a height greater than the height of any door or window, but should still
be at least 150 mm (5.9 inches) below the ceiling.
• The CO alarm should have a horizontal distance between 1 m (3.3 feet) and 3 m (10 feet) from any potential CO source.
• If there is a partition in the room, the CO alarm should be installed on the same side of the partition as the potential CO source.
300 mm (11.8 in)
CO ALARM
150 mm (5.9 in)
DEAD AIR SPACE
DON’T INSTALL HERE
Figure 1: Installation in a room with a fuel-burning appliance
Where to Install
1
–3 m
(3.3
–10 ft)
