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Clean carbonized gas boiler or replace? lots of CO
I have a customer with a 50 yr old Gibralter R30, 85k btu boiler with a liberty combustion gas burner model 225sc. It has never been cleaned in 50 yrs. carbon monoxide detectors went off. I checked it with my digital combustion analyzer and I'm getting numbers in the 2000 ppm range. Chimney is clear. I know its the boiler. I see loads of soot . Its carbonized as well. A colleague told me that he heard if you have a carbonized gas boiler and you clean it, it just will carbonize in a year or so again. Is this true? Does it pay to get it cleaned or just replace.