A part of a boiler or industrial furnace where solid fuel is stored and burned efficiently. The whole grate mainly includes two parts: frame and grate plate. The grate is usually made of cast iron, and the necessary ventilation gaps are maintained between the assembled pieces and the pieces, and a separated ventilation chamber that can adjust the air volume is often set under the grate, so that the air enters the fuel Haen trwy'r bwlch i losgi . Mae'r lludw wedi'i losgi yn cael ei ollwng â llaw neu'n fecanyddol . Mae'r grât o fath sefydlog, math symudol, math symudol, math cilyddol, math dirgrynol a math wedi'i dan -ddiffinio {{{4}
