Wednesday, June 19, 2013

Carbon Monoxide Detector Mounting

NFPA 720: Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment (2009) currently does not have any requirements for the mounting height/location of a carbon monoxide detector.  However, NFPA 720 does specify that is a carbon monoxide detector is installed in a room with a fire fueled appliance such as a generator, hot water heater, furnace, etc., it is to be mounted on the ceiling.

The reason behind the NFPA 720 placement of carbon monoxide detectors on the ceiling in these areas is pretty cool. 

Carbon Monoxide Poisoning with Fire Alarms

Carbon monoxide has a molar mass of 28.0, which makes it slightly lighter than air, whose average molar mass is 28.8. According to the ideal gas law, CO is therefore less dense than air.  With that said, the heat generated by these appliances will make the carbon monoxide (CO) more buoyant and present it to the carbon monoxide detector on the ceiling.

Other than that there is not a requirement in the NFPA 720 for the mounting height of a carbon monoxide detector.  It is up to the owner and or installer.

On another note, make sure that when you place your carbon monoxide detector outside of the sleeping area you still achieve a sound level of 75dB at the pillow with the door closed.

Read more hear about the new laws and state legislation for carbon monoxide detection in California.

If you are interested in taking the NICET CBT exam for fire alarms, then we have you covered!  We are now selling our CBT Levels 1 - 3 practice exam DVDs.  These DVDs are packed with tons of NICET CBT practice exams along with all code references as to where to find the answers.  We have also supplied the DVDs with all of the necessary NICET applications, CBT calculator demonstrations, links and more.  If you need more information, feel free to send an email.  You can find the link to purchase our DVDs on the top left section of each page on this site.

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