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A fire brick, firebrick, fireclay brick, or refractory brick is a block of ceramic material used in lining furnaces, kilns, fireboxes, and fireplaces. A refractory brick is built primarily to withstand high temperature, but will also usually have a low thermal conductivity for greater energy efficiency .
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 ...
Kiln technology is very old. Kilns developed from a simple earthen trench filled with pots and fuel pit firing, to modern methods. One improvement was to build a firing chamber around pots with baffles and a stoking hole. This conserved heat. A chimney stack improved the air flow or draw of the kiln, thus burning the fuel more completely.
In the main fire passage there is a fire wagon, that holds a fire that burns continuously. Each room is fired for a specific time, until the bricks are vitrified properly, and thereafter the fire wagon is rolled to the next room to be fired. Each room is connected to the next room by a passageway carrying hot gases from the fire.
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 ...
The clay bricks are trapezoidal in shape, with one end smaller than the other. The bricks are arranged in circles pointing inward. The smaller ends form the inside walls. [3] In the settlement of Lothal a brick-lined building on an elevated mound included a well lined with baked bricks, a bathing facility and a drain. [5]