said by aurgathor: I'd put the CO detector near the likely source(s) or pathway(s) of CO.
The recommendation is to install CO detectors near sleeping quarters; as that when and where most fatal exposures occur - when people are asleep; and don't realize they're showing symptom; or, when they are showing symptoms (headache, naseua, fatigue, etc) where do they go? To bed...
I know what you're saying about putting it near the source; and understand the logic; but your best bang for the buck is still near the bedrooms. As for 'pathways' - CO mixes very evenly with air; so anywhere within the conditioned space of a home should be exposed fairly equally.
FWIW - I have two - one in the main floor hallway by the bedrooms; and one in the basement, just outside the mechanical room.
