Scotch marine boiler
Videos
A "Scotch" marine boiler is a design of steam boiler best known for its use on ships.
German example. Note the steam dome, a typically German feature, and also the corrugated furnaces.
Sectional diagram of a "wet back" boiler
Inside the combustion chamber, looking up at the tubeplate
Rear face of the boiler of steam tug Mayflower, showing the stays supporting the combustion chambers
Firebox (steam engine)
Videos
In a steam engine, the firebox is the area where the fuel is burned, producing heat to boil the water in the boiler. Most are somewhat box-shaped, hence the name. The hot gases generated in the firebo
The firedoor into the firebox of a steam locomotive. The firebox peak temperature is approximately 2,500 °F (1,370 °C).
Firebox of a GWR 6959 Class steam locomotive, showing the underside of the brick arch, constructed from specially-shaped firebricks
Empty firebox of a Baureihe 52, showing the brick arch
Cutaway of locomotive firebox and boiler with radial stays