Performed routine boiler maintenance to ensure optimal efficiency. Inspected the heat exchanger for any signs of wear and cleaned the burner assembly to improve combustion. Tested the pressure relief valve and checked the expansion tank to maintain proper system pressure. Flushed the system to remove any sediment buildup and checked for leaks in the piping connections. Verified that the thermostat and circulator pump were operating correctly. The boiler is now in excellent condition, ready for the heating season ahead.