Where to Put a Smoke Alarm or Smoke Detector in a Bedroom
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- čas přidán 27. 08. 2018
- Current fire alarm code requires smoke alarms and smoke detectors be placed in all bedrooms and sleeping areas in a home.
Proper smoke alarm placement is critical for good response time when smoke is detected. The placement on a ceiling varies depending upon the type, flat, sloped or peaked.
Link to other Know How Now videos about smoke alarms: • residental fire alarm ...
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Link to Know How Now videos about smoke alarms: czcams.com/play/PLvce66kQTjJQtdTS3bjRsGC8vsb9aVQzH.html
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This is extremely useful, thanks!
thank you!
You are welcome!
Perfect! This is exactly what I wanted to know. Drawings were a nice bonus. Thanks for keeping it concise. :)
You are welcome, Adam. I try to pack everything you need to know is the smallest amount of time. Our time is valuable. As many others have done, please consider subscribing to the channel. It's free, there are over 200 videos that are organized by playlist. You'll always be able to easily find the videos.
Please help........ We have radiant heating in our home. Our bedroom also has a ceiling fan. Where would the best place to be to put a smoke detector in this bedroom?
You might leave 12 inches spacing between the ceiling and the smoke detector as while a fire: accumulated gases on top of the ceiling can push the smoke downwards, and the optical beam might not turn the alarm ON if only little smoke will enter inside the optical chamber.
let's make this easy keep it 12 inches from any corner smokes on the inside of bedrooms within 5ft of the door but watch your 36" clearance of a vent.. need a combo c/o smoke 20 ft from outside of bedrooms 1 c/o smoke combo per floor
Question.
I have to add a smoke detector to an existing run of smoke detectors. Can I pick up the power to the new box from any other existing detector box or does it have to be wired in series?
It depends on the type of smoke detector. If you are adding one to an existing low voltage system that is "addressable" you can t tap them in. (You'll need to change the program to add the new address) If it's an older non addressable then it must be in series. Of course you will need to make sure the new smoke detector is compatible with your panel/system. If it's an AC powered one, you'll need to know if one detector makes the sounders activate in all of the smoke detector. Get the model number off an existing smoke detector, find a compatible model or the same model. There will be a installation instructions on how to wire it correctly. Test the new smoke detector after adding it.
code states within 5ft of inside the bedroom door I believe not centered
So lets say you have 10 foot ceilings and you're disabled, so it's impossible to get up there and change.. Can I place them lower on the wall. Like 6 feet up. Thanks.
The code only allows for a max of 12 inches below the ceiling. See 2:10 in video. If you place it lower, the smoke alarm will not give you warning early enough to escape, defeating it's purpose... smoke rises. If you are disabled you will want the max time to escape from a fire. Escape time has diminished due to materials inside our homes. See link to NFPA article. www.nfpa.org/Public-Education/Staying-safe/Preparedness/Escape-planning
@@Know-How-Now Yeah well burning might be better than hearing the beep of the smoke alarm. Or maybe I could get my 87 year old mom to climb up the ladder. Thank you..
You are incorrect on your peaked ceiling diagram. The 36 inches is a horizontal distance. So depending on the slope of the ceiling how far down vertically you can place the smoke detector will vary. To try this out form a peak with 2 pieces of paper. Use a ruler to measure 3 inches across from one paper to the next. Note the vertical distance above the ruler to the peak. Now change the slope of the 2 papers to form a ceiling that slopes more or less than your first example. Again measure 3 inches horizontally. You will see that the vertical area where you can place the smoke detectors varies. It is NOT within a constant 36 inches. The 4 inches should be allowed for from the peak, but the actual vertical area changes depending on slope. On a very steep ceiling you will have more vertical area to place the detector. On a less sloping ceiling you will have less vertical area (inches) within which to place the detector.
Here is the rule: Shed Ceilings (Peaked Ceilings): Smoke alarms or smoke detectors mounted on a peaked ceiling shall be located within 36 in. (914mm) horizontally of the peak, but not closer than 4 in. (102mm) vertically to the peak.
Thanks for taking the time to comment. The diagram comes from NFPA 72, the 2002 Edition. Figure A.11.8.3.3
Again, you are incorrect. The 2002 NFPA 72 Figure A.11.8.3.3 clearly shows a HORIZONTAL measurement of 3 feet. There is no measurement shown on the vertical at all because the vertical distance will vary depending on the slope as I've previously outlined. Might I suggest that you go back and look at that diagram again.
The diagram's measurements in the video are as shown in my code book. There is a vertical measurement of 4 inches or 102 mm from the peak on the diagram. I again double checked my code book and the diagram is as shown in the book. Perhaps you should look at your code book again and admit that you are mistaken.
Where you are mistaken is in your hand-drawn diagram at about 2:41 in your video. Your peaked ceiling diagram shows 36" VERTICAL distance. Go back and LOOK at your video. There is no constant 36" VERTICAL distance in the code. The code states and shows 36" HORIZONTAL. (My caps are for emphasis). Compare your diagram to this one from NFPA www.nfpa.org/Public-Education/Staying-safe/Safety-equipment/Smoke-alarms/Installing-and-maintaining-smoke-alarms
Although I think Cynyat could have worded it a bit nicer (especially since your video is doing a great service to others), after reviewing the NFPA documents, I think Cynyat is right. Your diagram for the sloped ceiling is correct, but for the peaked ceiling is a 36" horizontal distance, not vertical. Thank you for taking the time to make this helpful video!
Sometimes big poops hurt