1 Gas Hot Water Boiler: Well McLean Steam Boiler- Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger Check and clean Burners tubes and heat exchanger- ok, vacuumed-ok Check and clean flame sensor/flame rod and ignition Assembly-ok Spark igniter. Check Safety Controls-ok Check electrical wiring and components-ok Check Gas valve & Gas Line-ok Check Combustion Air & Exhaust-ok Check Temperatures & Water pressure settings; Performance-ok Check and run Thermostats- operating well at this time. Check automatic water feeder, automatic low water cut off, clean pigtail, Check pressuretrol, Flush boiler until water is clear. Check for water leak no leakage at this time. Ran and monitored for good operations. Supply and return lines getting hot. Check flow. Perform check for HWH. Check for water leak, no leakage at this time. Check control gas valve-ok Check air Combustion and Draft-ok Run and monitored for good operatio