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When was the first smoke detector invented? - Home

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It was first invented in 1890 in the United States.

Posted on Jan 16, 2013

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First smoking detector was invented in US in 1890.

Posted on May 22, 2014

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I have 6 smoke detectors & two CO2 detectors hardwired in. The smoke detector in the kitchen went off and now all the detectors will not stop alarming. How do I reset?


First of all, you really should not have a smoke detector in the kitchen as it will be far too prone to false alarms, especially since most household smoke alarms are ionization type, which respond to the presence of gases caused by combustion. A proper system as recommended by NFPA will have one detector in each bedroom, one in each bedroom hallway, and recommended one per floor thereafter, with placement being near exit points to help guide you to the exit during an actual fire (by sound, since it's difficult to see through smoke). I would be inclined to remove that device or try to find a heat detector replacement, such as Kidde Model # HD135F. For now I would vacuum out the device or try a can of compressed air to blow it out, but I would not leave that device long term.

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I have replaced the batteries to the smoke detectors and they keep beeping. What is the problem?


It is possible that the battery is not contacting the metal clips inside. See if the can be adjusted out. More likely the detector is not recognizing the voltage of the new battery. You can try removing the detector from the ac power install the battery and reconnecting it to the ac. It should correct the issue.

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Air may flow through the unit if you don't have a vapour barrier wrapped around the electrical box in a ceiling with an attic above. The smoke detector may look smoky and it may have come from cooking grease in the air. This may foul the smoke detector. All smoke detectors have a piece of radioactive americium-241 that creates ions in an ionic chamber. This chamber has to be pristine. That is why smoke detectors have a replacement date on them. It may be time to get another one. Some kits come with a cardboard baffle to stop so much air sucking through the unit.

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The National Fire Prevention Association (NFPA) states that the best location for a smoke detector is on the ceiling near a doorway or stairway.You should also have a smoke detector on the hallway ceiling outside of sleeping areas (bedrooms). Put one either inside or just outside the kitchen.

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Home Depot or Lowes sells "smoke in a can". Use it sparingly to test your smoke detector.

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First try vacuuming out any dust that may be in the unit. If that doesn't work, replace the smoke detector.

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The photoelectric ones are good for identifying smoldering, smoky fires. The ionization type of best for fast flaring fires. For really good protection, get a smoke detector with both methods. (It will be more expensive though.)

I hope this helps.

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