Linked from
The 14 pages that link to Boiler, each with the reason it gives.
Thermodynamic systemRelated: The flowing fluid can be bounded as a control volume receiving heat.
Thermal power stationBroader topic: It supplies the high-pressure steam that can drive a turbine.
Water heatingRelated: Boilers supply hot water or steam in buildings and industrial facilities.
Sylvester H. RoperRelated: A compact boiler had to generate usable steam aboard Roper’s vehicles.