High efficiency Hot Water Boiler. WeilMclain Ultra 399. Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger Check and clean Burners an heat exchanger- ok, vacuumed-ok Checked and cleaned flame sensor and ignition Assembly-ok Check Safety Controls-ok Check electrical wiring and components-ok Check Gas valve & Gas Line-ok Check Combustion Air & Exhaust, intake lines-leaking. Check Temperatures & Water pressure settings; Performance-ok Check an monitored water temperature and test unit for good operation-okay Check circulation pumps-okay Check and clean condensation trap of the boiler-ok Check and clean condensate pump and drain line-okay Check and cleaned NC1 neutralizer kit-okay Check for water leak,no leakage at this moment. Left heating system operating correctly at this moment. -/-/-/-/-/- Recommendation. I showed her and suggested the client to consider doing the heater exchange cleaning. I also showed her