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firebox

firebox
Noun
pl: fireboxes

This term is a technical noun primarily used in mechanical engineering and railway history. It describes a specific structural component designed to withstand extreme heat and pressure, distinguishing it from a general furnace or a combustion chamber by its role as the primary heat source for a boiler.

In modern contexts, the word is most frequently encountered when discussing steam locomotives or vintage heating systems. It carries a connotation of industrial durability and heavy machinery, rarely appearing in casual or domestic conversation unless referring to specialized wood-burning stoves.

Meanings

Nounfirebox

The enclosed chamber in a boiler, furnace, or steam engine where fuel is burned to produce heat.

The engineer carefully cleaned the soot from the firebox of the locomotive.

Examples

The engineer shoveled more coal into the firebox to increase the steam pressure.

History

The engineer shoveled more coal into the firebox to increase the steam pressure.

Check the firebox for any signs of cracking or heat damage.

none

Check the firebox for any signs of cracking or heat damage.

The firebox glowed a deep orange as the flames roared inside.

none

The firebox glowed a deep orange as the flames roared inside.

Is the firebox properly insulated to prevent heat loss?

none

Is the firebox properly insulated to prevent heat loss?

A leak in the firebox could lead to a catastrophic boiler failure.

none

A leak in the firebox could lead to a catastrophic boiler failure.

He spent the afternoon scrubbing soot from the interior of the firebox.

History

He spent the afternoon scrubbing soot from the interior of the firebox.

The design of the firebox allows for maximum heat transfer to the water tubes.

none

The design of the firebox allows for maximum heat transfer to the water tubes.

I wonder if this old locomotive still has an intact firebox.

History

I wonder if this old locomotive still has an intact firebox.

The refractory bricks lining the firebox are starting to crumble.

none

The refractory bricks lining the firebox are starting to crumble.

Related Words

furnaceboilersteamlocomotivecoalwoodfuelheatcombustionfireashgratefluesmokechimneyexhaustpressurevalvecylinderpistonsteelironbrickrefractoryinsulationdraftoxygenignitionembersootclinkerstokershoveltenderenginerailwaytrainthermodynamicsenergytemperatureglowflameburnoxidationventilationchamberhearthsteam engineconvectionradiationconductionthermalexpansionleaksealgasketmanifoldnozzlepressure gaugesafety valve
Última actualización: May 2026Reportar un error