At a recent inspection I was able to detect a defective gas furnace with a cracked heat exchanger which had been producing low level amounts of carbon monoxide some of which was entering the home. The house did have an alarm type CO detector but because ppm was under 50 the alarm dit id not activate.
The gas company "Red Tagged" the furnace confirming my judgement. My client's had a new furnace installed prior to them moving into the home. The sad part of the story was the home had been inspected about a 10 days prior and this was not reported. The sellers were upset because they assumed that I was wrong with my inspection report.. I usually see a couple of these a year. The small rust mark is the crack, there were 4 more carcks we we're able to see.
Everybody should have a digital readout style CO detector in their home in the bedroom hallway. Consistent reading over 9 ppm is not an emergency but you should look for possible sources. Never operate an "unvented" gas fireplace without a open window in the same room.
Comments(16)