At the end of this lesson, you will be able to describe where boiler water comes from and how it enters and flows through a boiler. You will also be able to explain the basic flow path the steam follows from the boiler to the steam turbine. • Explain the purpose of a hotwell • Describe the role low pressure condensate heaters and high pressure feedwater heaters play in the boiler water cycle • Explain the purpose of a deaerator • Describe the basic design of a water tube boiler • Explain the purpose of a steam drum • Explain the purpose of the primary superheater and secondary superheater