How Does Smoke Detector Work?

What does a smoke detector detect?

A smoke detector is an electronic fire-protection device that automatically senses the presence of smoke, as a key indication of fire, and sounds a warning to building occupants. Commercial and industrial smoke detectors issue a signal to a fire alarm control panel as part of a building’s central fire alarm system.

Do smoke detectors detect heat?

A smoke detector will only detect heat if that is an included function of the device. There is no rule that a smoke detector must also detect high temperatures. That said, many smoke detectors do include a heat sensing function. You should check the device to determine its capabilities.

Do smoke detectors detect cigarettes?

Yes, smoke detectors can detect even cigarettes because they produce smoke and any smoke that is detected by the smoke detector, this will set if off. While smoke detectors can detect smoke from a cigarette, they may not always detect it if it too little. A good smoke and CO detector would be the Nest Protect.

What type of smoke alarm is best for bedrooms?

Best for most: The First Alert BRK 3120B is a simple but high-quality smoke detector. With dual sensors and OptiPath technology, it can quickly detect both smoldering and big-flaming fires. It’s a great choice for most homes, and it’s cheaper than many lower-quality devices.

What can trigger a smoke detector?

What can cause smoke alarms to go off repeatedly?

  • Smoke detector placement. It doesn’t take a lot of smoke to trigger the alarm.
  • Overcooked food.
  • Steam or high humidity.
  • Pesky insects.
  • A buildup of dust.
  • Strong chemicals nearby.
  • The batteries need to be changed.
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Where should smoke alarms not be placed?

Do not place smoke alarms closer than 3 feet from any furnace or A/C supply and return grills or registers. Do not place them in areas of turbulent air, where the airflow may prevent the smoke from reaching the alarms.

Where in a room should a smoke alarm be placed?

According to the NFPA, smoke alarms should be placed in every bedroom, outside each sleeping area and on every level of your home. In addition, industry experts recommend having both photoelectric and ionization alarms for optimal protection against flaming and smoldering fires.

Do I need a heat detector in my kitchen?

In addition, the Building Regulations also require a heat alarm to be installed in any kitchen areas where the kitchen is not separated from the circulation space or stairway by a door. Heat alarms are recommended for placing directly in kitchens and in unconverted loft space.