Rusted Flues on Package Units - Things You and Your Customer Should Know
By TeamCHI - Complete Home Inspections, Inc., Home Inspectons - Nashville, TN area - 615.661.029
(Complete Home Inspections, Inc.)
As part of the inspection process, we are required to evaluate and comment on the condition of package units, furnaces and compressor units. Periodically, I come across an older package unit where there is excessive rusting around the exhaust venting for the enclosed built-in furnace. As a rule, I see this condition on units that are typically 12-14 years of age. Depending upon the manufacturer and whether the unit is "contractor grade" one can pretty much assume that there will be excessive rusting in the furnace and probably a cracked heat exchanger. Depending upon the manufacturer, grade and how well the unit has been maintained over its service life, the expected life expectancy of most package unit furnaces will be in the 12-18 year range. When I see this condition I tell my custo...
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