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In the making of firebrick, fire clay is fired in the kiln until it is partly vitrified.For special purposes, the brick may also be glazed. There are two standard sizes of fire brick: 9 in × 4 + 1 ⁄ 2 in × 3 in (229 mm × 114 mm × 76 mm) and 9 in × 4 + 1 ⁄ 2 in × 2 + 1 ⁄ 2 in (229 mm × 114 mm × 64 mm). [2]
An outdoor fireplace is a place for building fires outside of the home. Similar in construction to an indoor fireplace , an outdoor fireplace is usually added to a stone, brick, or concrete patio. It often consists of a firebox and a chimney .
A fire pit. The defining feature of fire pits is that they are designed to contain fire and prevent it from spreading. A fire pit can vary from a pit dug in the ground (fire hole) to an elaborate gas burning structure of stone, brick, and metal. Certain contemporary fire pit styles include fire bowls that can either be set in the ground or ...
Ash dump—An opening in a hearth to sweep ashes for later removal from the ash pit. [22] Back (fireback)—The inside, rear wall of the fireplace of masonry or metal that reflects heat into the room. [22] Brick trimmer—A brick arch supporting a hearth or shielding a joist in front of a fireplace. [22]
Fire clay in a furnace. Fire clay is a range of refractory clays used in the manufacture of ceramics, especially fire brick.The United States Environmental Protection Agency defines fire clay very generally as a "mineral aggregate composed of hydrous silicates of aluminium (Al 2 O 3 ·2SiO 2 ·2H 2 O) with or without free silica."
It is made of bricks or other forms of fired clay and more recently of concrete in some locations. The word kang means "to dry". Its interior cavity, leading to an often-convoluted flue system, channels the hot exhaust from a firewood / coal fireplace , usually the cooking fire from an adjacent room that serves as a kitchen, sometimes from a ...