Great job! Once I found out it was an old furnace with a pilot light, I would have stopped there, disabled the furnace, and just made sure the ac was working. Reason being, had it not been for the cracked flue pipe with the leak, the customer would have continued using it until it messed up again. In addition, those old furnaces are just a waste of time to clean and fix! At any rate, that was a thorough job. Post the installation if you can. Thx
Checking for carbon monoxide is the first thing you should of done. I wouldn’t be wasting your time on maintenance. Especially on a 20+year unit. Condemn it and move onto the next one.
Furnace is old so definitely needs to be replaced. But what’s the reason your going to be replacing it ? Is it because you found 15 PPM CO2 on the flu pipe ? As far as I know on a flue pipe you always find less than 100 PPM and it’s normal, even tho the limit is 400 PPM..
100-400ppm is definitely not normal in a conditioned space for an induced draft furnace. Are you referring to inside the flue during a combustion analysis?
You should come in the house with your CO detector on. If its running or soon as you restore heat it will be detected. Check HE before you waste your time..
We are going to replace the entire furnace along with the rotted venting due to the liability concerns. The furnace should never emit carbon monoxide into a conditioned space. Thanks for watching!
ANY carbon monoxide reading above 0ppm and we are assuming liability. A leak is a leak in the eyes of the law, period! There is office space directly below this furnace, and the flue piping is rotted out. Company policy is to shut it down until the furnace is safe for operation. Also, its not an auto garage. It is the office space, and storage buidling for a moving company.
