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I'm reading conflicting information online so I'm asking you all: Will it work best if placed near the ceiling or near the floor? (The box doesn't say.)
Due to the thermal dynamics of a residential home, CO would equalize throughout the home in a matter of minutes. The wieght of CO compared to O2 or N is minuscule at best.
Place a detector wherever it meets your immediate needs- electrical availability.
Mine is low to the ground, maybe I should move it higher up. I know that the propane gas leak sensors are low to the ground so maybe that was my reasoning for putting it so low. Good thread, don't want to wake up dead.
It doesn't really matter that much. If your CO detector is in good working order, it's going to detect a dangerous level of CO at any height placement in a room.
By the way, I nearly died from a CO leak from a faulty heater. The levels have to be pretty high to kill you - and any working CO detector would go off long before the CO levels reached lethal levels -at any height. What saved my kids from serious harm was that I always had the windows cracked in the bedrooms and their beds were near those cracked windows. At least that's what the doctors told me.
Meanwhile, I was sitting on the floor folding laundry after the kids went to bed and I passed out on the floor from the high CO levels. CO has no odor and not only that, its effects lull you into a false sense of "Ohhhh, everything is OK...and wow, I'm so sleepy." If I hadn't had a splitting headache (I mean like I thought I was having a stroke or something) that woke me up - along with a voice that I didn't really HEAR but which rung in my head in a very strange way, saying WAKE UP WAKE UP - I would have died along with my kids eventually. Needless to say, I have multiple CO detectors in my house now.
I spent five days in ICU and had multiple hyperbaric chamber treatments to flush the CO out of my body. I also had effects that lingered for at least six months afterwards. When I asked if I would ever fully recover, I was told, "We don't know - we've never known of anyone surviving such a high dose of CO before."
My blood saturation levels were 27 percent three hours after the incident, so they said they were much higher right after I passed out.
CO is nearly the same specific gravity as "air", it's a nearly insignificant difference and will travel along natural air currents. You want one near the expected source. Height is not going to matter much, use one with readout and put it eye level. Other places to target for additional detectors is where those currents are like a stairway.
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Other places to target for additional detectors is where those currents are like a stairway.
