proper height for CO detectors

ToddInVancouver

Hi Jim,

I thought CO settled too, but I just read the NSI 3000 brochure, and it states that CO is lighter, which is why they suggest eye level.

Todd

Jim_55

What is the proper height for CO detectors? The manualls say eye level but I was told you should install it low because CO settles to the floor.

Thanks Jim

Dan_15

I keep my NCI3000 at pillow level near the bedrooms, where I am most likely to die in my sleep from CO poisoning.

jp_2

jim

CO will not settle to the floor, CO2 is heavier and it also does not settle to the floor, otherwise we'd all be dead and no green houses gases would exist!. it all weighs about the same as h2(oops, N2), o2, co2, tc...

but if the CO is coming for the oven, it'll stay high in the room until it cools to ambient temp, then it;ll mix thoughtout the room.

i like mid wall height.

Dale

co height

Put the CO detector as near a possible where you sleep and where you will see the display every day. You will get used to looking for the 00. It doesn't matter if it's an outlet you usually don't use low or the top of a dresser.
The key is where you will see it and not need to unplug it. I have never heard of a CO death in a house by a person who wasn't asleep since CO death/exposure is a function of amount and time. If you look up CO on an msds sheet the sg is .97 compared to 1 of normal air temp. 70 I think. So, in theory just slightly lighter than air. In practice the same as air. If you ever watch car exhaust on a cold day it hangs near the ground so all of this is at standard conditions with some small change from standard. The cooler the product the less it rises, a campfire is burning CO but it rises quicker because it's hotter and less dense than the cooled Co from a furnace burner once it is mixed with house air.