It is probably quite evident that there are a number of fire alarms available, and at vastly varying prices, so it might be very difficult to understand the differences between Optical, Ionisation and Heat alarms. The following information is aimed at taking some of that misunderstandings away.
So what exactly is the main difference between the models? As stated above you can find three kinds of alarm, each using its own uses.
Optical Alarm: This sort of smoke alarm usually uses an infrared beam between two points, the alarm being triggered if the beam be disturbed. In much the same way being a criminal might trip a burglar alarm when breaking right into a bank vault or museum in the movies, if the beam is broken, the alarm will go off. It detects larger smoke particles best.
Ionisation Alarm: These alarms use 2 small plates (one charged positively, one negatively) and an alpha particle source to create a constant current running across the gap in between the plates. When smoke enters the chamber it inhibits this procedure, interrupting the charge. When the charge drops, the alarm goes off. These alarms would be best at detecting smaller smoke particles.
Heat Alarms: A heat alarm will trigger when the room temperature reaches a specific level. They are doing not detect smoke, and are not to be utilized as an alternative to get a smoke alarm, but ought to be used in assisting these alarms for greater fire detection.
Why do we must have different types of fire alarm?
Various kinds of alarm exist because of the different types of fire. Believe it or not, fires act in a different way based on precisely what is burning, and is essential to identify the fire as fast as possible. Different alarms are better at discovering different fires, and selecting the best alarm for the ideal room could save your life some day.
Fires could be particularly smokey, often due to the burning of papers or clothing etc, and burn rapidly, producing smaller smoke particles. The Ionisation alarms are better at detecting these fires.
Other fires can be a lot less smokey, often being harder to detect, and are due to the burning of carpets, sofas or electrical devices. These fires often burn less rapidly, producing larger smoke particles. Optical alarms will likely be better at detecting these fires.
Which fire alarm do I need? This post is meant as being a general guide, and then for more detailed safety advice it is strongly advised that you contact Fire alarms Cheshire. This being said, the details below should assist you to decide.
Optical alarm: Living room, dining area, hallway
Ionisation alarm: Bedrooms, walk in wardrobes
Heat alarms: Dusty areas such as garages, unconverted lofts etc in which the dust could affect the other alarm types.
Alarms are available as either battery operated, or mains byskyu with battery backup. The mains alarms will continue to get results for a time after power is lost for the unit, only as being a backup. If this sounds like the case, mains ought to be restored for the unit right away, or even the battery changed.
Some alarms even include a choice of interconnectivity, meaning if one alarm sounds, then each of the alarms sound. This can be highly valuable in larger properties where one alarm might not be heard by everyone. The idea would be to increase the alarm to everybody immediately – as soon as a fire starts – and achieving the alarms linked together will achieve this.
Fires are responsible for a large number of deaths annually, as everyone knows from the adverts broadcast on television or radio. This can be a fact, and may be reduced by simply checking your alarm to be sure that it works, and that it must be the right alarm for the location it is actually placed. Be aware that alarms need replacing after some time, which is worth checking on the unit and to note the replace by date. Should you be unsure, talk with your local Fire Service.