Alarm System: Smoke and Heat Detectors
If you add a smoke detector to your system it should be placed in the highest point of your home as possible, as smoke will rise no matter where it originates. Some homeowners elect to place one in the basement and top floor, and some want one added to every floor.
The technology that makes most of these devices work is “photoelectric technology.” This means that the detector basically takes a snapshot of the density of smoke that enters its chamber, and wants to see a density increase as it samples every few milliseconds. This technology makes the detector much more discriminating then its inexpensive counterparts.
Many of these devices also detect temperature change with their built in heat detectors. This means that the device will go into an alarm condition, if the temperature in its area of coverage is rising rapidly, even if there is no smoke yet. Independent heat detectors are also available, if you would like an added degree of protection in areas such as kitchens, furnace rooms, attics and fireplaces. (Required to meet code, in some municipalities)
There are many advantages to adding fire devices to your security system. Some of them are:
* Your detector is on all the time, even if your alarm is disarmed.
* The devices work off the power from your alarm system and use its backup power supplies should power fail.
* The siren will emit a tone that is audibly different then a burglary siren, so that you can differentiate.
* Your dispatch is being made without you having to call for help yourself. This gives you more time to gather your loved ones and pets for immediate exit.
* A dispatch will take place even if you are not home. Typically flames will be coming through your roof, by the time your neighbors see them, and call for help. This early response may save your pets and a good portion of your home.
* Insurance companies often give an additional discount, off your homeowners insurance, for having a fire system. These devices could effectively pay for themselves, after a few years.
(INSIDE SCOOP!) Some municipalities will not dispatch their limited resources to an automatic fire alarm, unless it is designed completely to local code. This is a very expensive endeavor that, many homeowners in those areas can’t justify. Businesses will have to do this, in order to get an occupancy permit. Check with your local fire authority before investing in smoke or heat detectors that will not get a response.
Matthew Francis [email protected]
22 year veteran of the alarm industry Installer, salesman, licensed alarm company owner, monitoring station designer, promotions and marketing director with one of the worlds largest security dealers. He now works as a consumer advocate, teaching consumers how to buy or get systems for free (without being taken). He is committed to being unbiased. His web site is http://www.expertsknow.com