I performed the annual service on the Buderus oil boiler. This included replacing the nozzle, oil filter, and pump strainer. I also brushed and vacuumed the heat exchanger and flue pipe to ensure proper airflow and efficiency. All system safeties were tested and confirmed to be functioning as intended. In addition, I completed a combustion analysis, smoke test, and draft test, all of which showed that the system is operating within the proper parameters. During the inspection, I identified some larger cracks forming in the front refractory board. At this time, they do not pose any immediate concern, but I informed George so we can continue to monitor the condition. We will reassess this area during next year’s service to determine whether any action is necessary. As previously noted by Jeremy, there appears to be a very slow leak originating from the FB-4 filter housing connected to the oil tank. Since our last maintenance visit in January 2023, approximately one inch of oil has coll