Heat Detectors

Heat Detectors generally fall in to two categories - Fixed Temperature Heat Detectors and more commonly, Rate of Rise Heat Detectors.

Fixed Temperature Heat Detectors

A Fixed Temperature Heat Detector utilizes a temperature sensing element which will generate an alarm condition if the temperature within the protected area reaches a pre-determined level e.g. 60șC or 90șC.

These detectors are used where high ambient temperatures exist or where sudden changes in temperature can occur e.g. kitchens, boiler rooms & foundries etc. A fixed temperature trigger point should be selected which is most suitable for the situation in question.

Rate of Rise Heat Detectors

A Rate of Rise Heat Detector will include a fixed temperature element as above but will in addition include a temperature sensing element which can detect a sudden change in temperature.This type of detector is more sensitive than a simple fixed temperature heat detector and as such is the choice for applications in which reliable performance and early warning are critical but where the environment makes smoke detection unsuitable.

Multi Detectors

Multi Detectors, combines a Smoke Alarm and a Heat Alarm in a single unit, marks a serious step forward in home fire safety. Previously, Multi-Sensor Alarms were only available to use on big panel-based systems like you?d expect to find in hotels or commercial offices. Now, they?re available for use in home environments too.The Multi-Sensor, as we?ve said, incorporates two alarm types into a single unit; it features both an Optical Smoke Alarm and a Heat Alarm. It?s important to understand that not all fires are the same. Some, for example start off slow and smouldering and produce more smoke and relatively little flame at first; this would be picked up by a Smoke Alarm but not so easily by a Heat Alarm. On the other hand, fast flaming fires with a corresponding fast rise in temperature would very probably set off a Heat Alarm before a Smoke Alarm. By combining the two, a Multi-Sensor offers the best ? and crucially the fastest - possible warning if there is a fire.