When you finish this lesson, you will be able to identify the major components of boiler water and steam systems and explain their functions. • Describe the flow path of the boiler water from the economizer to the boiler shroud and drum • Explain the relationship of drum water and steam levels • Describe the steam cycle through the primary superheater to the economizer • Explain the purpose of the major components along the steam cycle • Identify critical lines, valves, vents, drains, and controls along the main steam line • Explain the relationship of cooling water to the condenser during peak load demands