Carbon Monoxide Headquarters

CO is not Well Understood:

Properties, Presence & Detection:

CO is easy to detect.

CO is lighter than air and therefore rises (to the ceiling) and stays there. See Answer

CO is not combustible.

CO and natural gas are the same thing.

Natural gas contains considerable amounts of CO.

You can always tell if CO is present because of a peculiar odor that will be present. See Answer

A brand new, well designed, perfectly "tuned" heating/cooking device cannot produce toxic/lethal amounts of CO.

Diesel engine exhaust never contains enough CO to cause harm.

HVAC and gas company service personnel always check for CO when performing maintenance/service on home heating systems.

CO will be detected immediately by service personnel if it is present in a home heating system.

When your home CO detector shows low levels of CO, it is probably just an instrument malfunction.

Cracks in heat exchangers are responsible for the production of CO.

Home CO detectors/sensors are the best devices to ferret out CO because they react to very low levels of the gas.