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Author Topic: Crazy smoke detector problem.  (Read 804 times)

Jonathan Johnson

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Re: Crazy smoke detector problem.
« Reply #20 on: October 07, 2017, 07:37:52 pm »

... but a combination smoke/CO detector is the worst possible idea. Mainly.... where the freak do you mount it? Smoke rises. CO settles.

That's what I thought, too (about CO). But I wasn't sure, so I did some research (if you can believe the Internet) and found that CO actually tends to dissipate quickly rather than settling. It doesn't matter where you place the CO detector.

As for any detector, I've learned to blow them out every year to find off false alarms caused by dust or spiders.

EDIT: I used "credible" sources, not "fake news" sites.
« Last Edit: October 11, 2017, 11:47:18 am by Jonathan Johnson »
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Stop confusing the issue with facts and logic!

Rob Spence

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Re: Crazy smoke detector problem.
« Reply #21 on: October 08, 2017, 01:23:37 am »

That's what I thought, too (about CO). But I wasn't sure, so I did some research (if you can believe the Internet) and found that CO actually tends to dissipate quickly rather than settling. It doesn't matter where you place the CO detector.

As for any detector, I've learned to blow them out every year to find off false alarms caused by dust or spiders.

I have wired everything. I added battery CO detectors with displays so I could see the level if it goes off.


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Marc Sibilia

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Re: Crazy smoke detector problem.
« Reply #22 on: October 11, 2017, 05:30:44 am »

That's what I thought, too (about CO). But I wasn't sure, so I did some research (if you can believe the Internet) and found that CO actually tends to dissipate quickly rather than settling. It doesn't matter where you place the CO detector.
Carbon monoxide has a molecular weight of 28.  Air has an effective molecular weight of 29.  CO is slightly lighter than air, but close enough that diffusion effectively keeps things well mixed.

(Sorry about being redundant.  I didn't read everything before I replied to Ray.)
« Last Edit: October 11, 2017, 05:37:27 am by Marc Sibilia »
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