Grade D1, LD2D
Rented
New Build / Existing
Grade D1
A system of one or more mains powered detectors, each with a tamper-proof standby supply consisting of a battery or batteries.
Note D:
Heat detectors should be installed in every kitchen. A smoke detector should be installed in the principal habitable room. Where more than one room might be used as the principal habitable room, a smoke detector should be installed in each of these rooms.
Grade D1, LD2D
House of Multiple Occupancy (HMO)
Existing (1-2 Storey)
Note D:
Heat detectors should be installed in every kitchen. A smoke detector should be installed in the principal habitable room (see 3.28). Where more than one room might be used as the principal habitable room, a smoke detector should be installed in each of these rooms.
Owner Occupied
New Build (2-3 Storey)
Grade D2
A system of one or more mains-powered detectors, each with an integral standby supply consisting of a user-replacable battery or batteries.
Note D:
Heat detectors should be installed in every kitchen. A smoke detector should be installed in the principal habitable room. Where more than one room might be used as the principal habitable room, a smoke detector should be installed in each of these rooms.
* All systems, other than Grade A systems, should be tested at least every month.
* In the case of smoke alarms and any heat alarms, this test may be carried out by use of a test button on each of the smoke alarms, heat alarms and multi-sensor alarms installed in the premises.
* If a fire alarm has no test button, assistance with testing should be a sought from a fire service company. In case of linked alarms, the "one alarm, all alarm" feature must be verified. The alarm should be visually inspected, and any defects should be noted for action.