A firebox or firepit is the part of the fireplace where fuel is combusted, in distinction to the hearth

Hearth

In common historic and modern usage, a hearth is a brick- or stone-lined fireplace or oven often used for cooking and/or heating. For centuries, the hearth was considered an integral part of a home, often its central or most important feature...

, chimney

Chimney

A chimney is a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the...

, mantel

Fireplace mantel

Fireplace mantel or mantelpiece, also known as a chimneypiece, originated in medieval times as a hood that projected over a grate to catch the smoke. The term has evolved to include the decorative framework around the fireplace, and can include elaborate designs extending to the ceiling...

, overdoor

Overdoor

An "overdoor" is a painting, bas-relief or decorative panel, generally in a horizontal format, that is set, typically within ornamental mouldings, over a door, or was originally intended for this purpose.The overdoor is usually architectural in form, but may take the form of a cartouche in Rococo...

 and flue

Flue

A flue is a duct, pipe, or chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. In the United States, they are also known as vents and for boilers as breeching for water heaters and modern furnaces...

 elements of the total fireplace system. The firebox normally sits on a masonry base at the floor level of the room. Some fireboxes are large in proportion so that a person could actually walk inside, or in extreme cases have a small meeting using built-in benches inside. An example of the latter oversize construction can be found in the great hall

Great hall

A great hall is the main room of a royal palace, nobleman's castle or a large manor house in the Middle Ages, and in the country houses of the 16th and early 17th centuries. At that time the word great simply meant big, and had not acquired its modern connotations of excellence...

 of Muchalls Castle

Muchalls Castle

Muchalls Castle stands overlooking the North Sea in the countryside of Kincardine and Mearns, Aberdeenshire, Scotland. The lower course is a well preserved double groined 13th century towerhouse structure, built by the Frasers of Muchalls. Upon this structure, the 17th century castle was begun by...

 in Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

.