Performed inspection on basement system from 1998, I was not able to locate a crack in the heat exchanger but did find multiple spots of rust and comprised metal that has weakened over time. I also noted that the system has a failing inducer motor, and Ignitor as well as some other components that need attention. At this time the homeowner decided to repair the unit and wait to get a quote for replacement. At this time the system is operating but we will need to return with parts and install Wednesday at 8am.