Disassembled and removed the old boiler from the basement. Cleaned the surrounding area and removed all associated components from the site. Jim reported hearing air in the first-floor piping. The first-floor zone was thoroughly purged, and an air pocket was identified and removed. Verified proper circulation with no remaining air noise in the piping. Confirmed proper operation of both upstairs and downstairs thermostats; each calls independently and responds as designed. The system is operating properly at this time.
