The Ontario Building Code | Location of Carbon Monoxide Alarms
6.2.12.2. Location of Carbon Monoxide Alarms
(1) Where a fuel-burning appliance is installed in a suite of residential occupancy, a carbon monoxide alarm shall be installed adjacent to each sleeping area in the suite.
(2) Where a fuel-burning appliance is installed in a service room that is not in a suiteof residential occupancy, a carbon monoxide alarm shall be installed,
(a) adjacent to each sleeping area in every suite of residential occupancy that is adjacent to the service room, and
(b) in the service room.
(3) Where a storage garage is located in a buildingcontaining a residential occupancy, a carbon monoxide alarm shall be installed adjacent to each sleeping area in every suite of residential occupancythat is adjacent to the storage garage.