 
     |
| Smoke / CO2 Alarms ? (Page 2/2) |
|
theogre
|
DEC 26, 02:35 PM
|
|
| quote | Originally posted by cliffw:
What are the suggested "rules" ? I do not desire my smoke detector to be on the ceiling. |
|
Example: If mounted on a wall... try mount in middle of wall up high but not too high...
Flat ceilings should be near the middle too.
Most types of Vaulted ceilings need mounted at or near the top and wall mount may not work in those rooms.
Many have install directions for more info.
Near any vert or horiz corners the air can roll in weird ways and block smoke get into the unit.
Sim to air flow in pickup truck beds and back window for Fiero at different speed going forward.
Problem w/ wall mounting is because have to avoid corners, the smoke can take a long time to built up to "sink" enough to trigger the alarm.
And that for optical and ion units.
Note:
Many moron hate even Ban Ion units because has tiny bit of Americium-241 but optical and ion sensors "read the room" in different ways and can avoid false trips and trip better for different fire types.
And why Some units have both sensor in them.
Optical needs obvious smoke. A haze you barely see is enough for some units but in a kitchen often will go off a lot every time you burn toast etc.
Ion goes off w/o obvious smoke but may false trips in a kitchen w/ gas stoves or near a bathroom when people shower or anywhere w/ condensing humidity.
Is why they sell Kitchen and other units made/tuned to a space so people don't disable them.
see Ionization vs photoelectric @ NFPA http://www.nfpa.org/Public-...ion-vs-photoelectric[This message has been edited by theogre (edited 12-26-2022).]
|
|
|
|
Fats
|
DEC 27, 01:10 PM
|
|
| quote | Originally posted by cliffw:
Thanks theogre !
If I was self conscious, I would think I am a dumb azz. I do like to think I can trust what I think. Thank you for helping me do that. Gee, lucky for my dumbazz they likely don't make combination smoke / CO2 home alarms, .
My fire extinguishers are Kidde brand and that brand was high on my list.
Thanks for your advice, to all, on many subjects.
Merry Christmas. |
|
I work in an industry where we use C02 detectors (Checking for Carbon Dioxide, not Monoxide) in many places at work. we've had Memos going out, written by the "smarter" in the group calling for us to test our C0 detectors. So if the smarties get it backward one direction, we can get it wrong the other direction. 
|
|
|
|
RichLo1
|
JAN 04, 07:25 PM
|
|
I have a CO (not CO2) monitor in my garage since I use propane and kerosene torpedo heaters regularly in the winter.
Get a monitor/alarm that gives a live digital PPM reading rather than just an alarm that only beeps after it reaches a dangerous level. Mine is a 110v plug in unit that can go into any outlet. It's nice to be able to glance at it while walking by to make sure its still 0ppm. Or if it starts to read anything you know you have to change something.
This is similar to the one I have but any 110v monitor/alarm combo should be very similar
 [This message has been edited by RichLo1 (edited 01-04-2023).]
|
|
|
|
IMSA GT
|
JAN 05, 09:30 PM
|
|
| quote | Originally posted by cliffw:
I am surprised this thread got this much attention and valuable advice.
What are the suggested "rules" ? I do not desire my smoke detector to be on the ceiling.
My central heat and A/C is located in a hallway. I think the opposite wall, in front of the unit would be where I want my CO detector. |
|
Smoke detectors need to be a minimum 12" away from any wall when ceiling mounted and a maximum of 12" down a wall. Smoke rolls in those corners and will never get to the detector. They call these areas the dead zone for a detector.
Imagine the detector mounted in the dead zone of the image and you can see that smoke will simply roll past it.[This message has been edited by IMSA GT (edited 01-05-2023).]
|
|
|
cliffw
|
JAN 11, 03:34 AM
|
|
|
|
|