Category Archives: Smoke Detector

Smoke Detector placement and installation

Proper mounting of a smoke detector also is important. You can mount many detectors by yourself, but those connected to your household wiring should have their own separate circuit and be installed by a professional electrician. Smoke Detector

The placement of smoke detectors is very important. Sleeping areas need the most protection. One detector in a short hallway outside the bedroom area is usually adequate.

Hallways longer than 30 feet should have one detector every 30 feet. A smoke detector should be installed in every room that will be occupied.

Be sure to keep the detector away from fireplaces and wood stoves to avoid false alarms.

PlaceĀ Smoke Detector at the top of each stairwell and at the end of each long hallway. Smoke rises easily through stairwells. If you should put a smoke detector in your kitchen, be sure to keep it away from cooking fumes or smoking areas.

Proper mounting of a smoke detector also is important. You can mount many detectors by yourself, but those connected to your household wiring should have their own separate circuit and be installed by a professional electrician.

If you mount your detector on the ceiling, be sure to keep it at least 18 inches away from dead air space near corners. If you mount it on the wall, place it four to 12 inches below the ceiling and away from corners. Keep them high because smoke rises.

Never place them any closer than three feet from an air register that might re-circulate smoke. Don’t place them near doorways or windows where drafts could impair the detector operation. Don’t place them on an uninsulated exterior wall or ceiling. Temperature extremes can affect the batteries.

Installation:

 

The placement of smoke detectors is very important. Sleeping areas need the most protection. One detector in a short hallway outside the bedroom area is usually adequate.

  • Do not place a detector closer than 3 feet from an air register that might re-circulate smoke.
  • Make sure smoke detectors are at least 18 inches from a corner.
  • Do not place a unit on an uninsulated exterior wall or ceiling.
  • Place smoke detectors at least 3 feet from ceiling fans.

There are two basic types of smoke detectors:

1. Ionization detectors – Ionization detectors contain radioactive material that ionizes the air, making an electrical path. When smoke enters, the smoke molecules attach themselves to the ions. The change in electric current flow triggers the alarm. The radioactive material is called americium. It’s a radioactive metallic element produced by bombardment of plutonium with high-energy neutrons. The amount is very small and not harmful.

2. Photoelectric detectors – This type of detectors contain a light source (usually a bulb) and a photocell, which is activated by light. Light from the bulb reflects off the smoke particles and is directed towards the photocell. The photocell then is activated to trigger the alarm.

KeepingĀ Smoke Detector in good condition is easy. Always follow the manufacturer’s instructions. Be sure to replace the batteries every year or as needed. Most models will make a chirping, popping or beeping sound when the battery is losing its charge. When this sound is heard, install a fresh battery, preferably an alkaline type.

The importance of using the smoke detector

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Smoke Detector regulations for existing homes

Below are the NFPA Smoke Detector regulations for existing homes.

  • Place a smoke detector, loud enough to hear through a closed door, outside each bedroom.
  • Install at least one smoke detector on each level of the home.
  • A smoke detector powered by the home’s electrical system must have battery-powered backup.
  • All smoke detectors on each floor must be interconnected.

Smoke Detector regulations for existing homes = Replacing and Maintaining Your Smoke Detector.


  • “Simple steps like maintaining smoke detectors and replacing older ones help diminish the possibility of fire deaths in the home,” says John R. Hall, Jr., NFPA’s assistant vice president for fire analysis and research.
  • The rules of thumb are to replace a smoke detector every 10 years and when you move into a new residence.
  • A smoke detector is a crucial fire-safety tool, but installing and replacing it is only half the battle. Proper maintenance is also necessary. Performing the following tasks makes it easy to keep your smoke detector in good working condition.
  • Perform a monthly check by pressing the test button on your smoke detector.
  • Replace batteries annually and when the smoke detector begins to emit the low-battery warning beep.
  • Clean your smoke detector weekly by a vacuuming any accumulated dust or dander, and wipe it down monthly with a damp rag.
  • Install long-lasting batteries into all smoke detectors.
  • Smoke detector maintenance is neither difficult nor time consuming, but it is imperative to ensure proper function and meet the NFPA Smoke Detector regulations for existing homes.

 

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Smoke Detector

Every 83 seconds a residential fire breaks in the U . s . States. Every year, residential fires injure over 39,000 American children younger than 14. In 2-thirds of those houses, the smoke detector either does not work or does not exist.

Statistics reveal that setting up a smoke detector saves lives. Based on the National Fire Protection Agency (NFPA), “Houses having a smoke detector routinely have a dying rate that’s 40 to 50 % under the rate for houses without smoke detector.”

The NFPA sets the guidelines and rules relating to residential smoke detectors, but many people are not aware of those guidelines. The NFPA also offers the public with info on smoke detector maintenance and when you replace them.

Smoke Detector Rules For Existing Homes

Just because a smoke detector is generally is not hardwired into the electrical systems of numerous older houses, retrofitting these homes with a brand new smoke detector is frequently difficult. But, improving your smoke detector is important to making certain you and your family are secure if a fire ever breaks out in your house.

Link to NFPA smoke detector regulations for existing homes.

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