Completed heating Maintenance on one steam boiler, removed and cleaned burner Tubes and clean pilot assembly replaced thermocouple also removed and cleaned pressuretrol And Flushed boiler turn system on and check natural gas lines from boiler shut off valve to burners and checked for carbon monoxide done detected left system working View visual findings from this job here - https://visionshare.xoi.io/?id=XA-A243-9B93B5F5176B4AA899A2D893D7F98D44