Fire Alarm Systems

A conventional fire alarm system divides a building into zones, with multiple detectors and call points wired together in each zone.

When an alarm is triggered, the system identifies the affected zone but not the exact location of the fire. These systems are generally more affordable but require more wiring, making them better suited for small to medium-sized buildings like schools, shops, or offices.

In contrast, an addressable fire alarm system assigns a unique address to each device, allowing precise identification of the triggered detector or call point. Using a single loop wiring system, addressable alarms reduce cabling needs and simplify maintenance, making them more cost-effective for larger buildings despite a higher initial investment.

They are ideal for hospitals, hotels, and complex facilities where pinpoint accuracy is crucial for safety. Choosing between these systems depends on the size of the building, budget, and need for detailed fire detection.

A fire alarm system zone is a designated section of a building that helps identify the general location of a fire or fault. In a conventional fire alarm system, multiple detectors and call points are grouped into zones, with each zone covering a specific area, such as a floor or section of a building.

When an alarm is triggered, the control panel indicates the affected zone but not the exact device, requiring manual investigation. Addressable fire alarm systems also use zones, but each device has a unique address, allowing the system to pinpoint the exact location of an alarm.

Zoning is essential for efficient fire detection, evacuation planning, and compliance with safety regulations. Larger buildings typically have more zones to improve response times and minimise disruption. Properly planned zones enhance fire safety by ensuring alarms are quickly investigated.

For comprehensive fire safety in your home, you should have multiple alarms, including smoke, heat, and carbon monoxide (CO) alarms. Smoke alarms are essential in hallways, landings, and living areas to detect fires early.

Heat alarms are ideal for kitchens and garages, where smoke alarms might trigger false alarms due to cooking fumes or dust. Carbon monoxide alarms are crucial in rooms with gas appliances, boilers, or solid fuel burners, as CO is a silent, deadly gas.

To maximise protection, interlinked alarms are recommended so that if one detects danger, all sound simultaneously. UK fire safety guidelines suggest placing smoke alarms on every floor and in high-risk areas. Investing in a combination of these alarms ensures early warning against fire and CO poisoning, giving you and your family the best chance to react.