A device for generating steam for power, processing, or heating purposes or for producing hot water for heating purposes or hot water supply.


In early practice this was usually wooden strips held by brass bands. Later they used asbestos matting as the insulation covered with rolled steel sheets.


A raised location on the top of the main boiler drum, providing a high point from which to collect dry steam, reducing the risk of priming.

Fire Tube Boiler

A boiler where the primary heating surface is tubes with hot gas flowing inside and water outside.

Water Tube

A boiler tube through which the fluid under pressure flows.

Water Tube Boiler

A boiler whose primary heating surface is composed of many small tubes, filled with water.

See also: Ashpan, Blow Down Cock, Boiler Dome, Bulge, Chordal Thermocouple, Cladding, Crinolines, Exhaust Injector, Field-Tube, Fire Tube Boiler, Firebar, Flue, Foundation Ring, Fusible Plug, Galloway Tubes, Gauge Glass, Injector, Klinger Gauge Glass, Manhole, Mud Drum, Mudhole, Pressure Relief Valve, Safety Valve, Scum Valve, Smokebox, Steam Drum, Steam Engine, Steam Point, Super Heated Steam, Tube Sheet, Turner Gauge, Water Tube Boiler, Water Wall.

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Subjects: Mechanical Engineering

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