m Ransley wrote:
George, Heating equipment does not "tell" you when Co is being released
because of a cracked exchanger, poor draft or racoon in the chimney, I
had a racoon in my chimney.

Co detectors do. They save enough lives in Chicago that they are
mandatory in apartment buildings. The proved thenselves to me when the
exaust blower motor on my 117000 btu water heater failed. They should
be mandatory, Co does not smell and burnt NG can be decieving


I agree that multifamily and commercial buildings should
have CO detection. They couldn't have saved many lives
though if only 150 per year in the U.S. died of CO.

Shouldn't a failed exhaust blower shut down the water
heater? Sounds like a failure of the safety features.