Fire bricks is a block of refractory ceramic material used in furnaces, kilns and fireboxes. They are primarily built to resist excessive temperatures, usually have to decrease thermal conductivity for higher power efficiency. Fire bricks can preserve excessive heat without melting or fusion, usually consists of silicon dioxide and aluminium oxide. The process involved in the manufacturing of firebricks at high temperatures to attain the specified results. Typically, dense fire brick are used with excessive mechanical, chemical, or thermal stresses such as friction, wooden, or ash inside a furnace manufactured from wood for high-temperature diffusion.