A stoker in which fuel is fed onto grates above the point of air admission to the fuel bed. Overfeed stoker grates include the following: (1) Front Feed, Inclined Grate — Fuel is fed from the front onto a grate inclined downward toward the rear of the stoker; (2) Chain or Traveling Grate — A moving endless grate that conveys fuel into and through the furnace where it is burned, after which it discharges the refuse; (3) Vibrating Grate — An inclined vibrating grate in which fuel is conveyed into and through the furnace where it is burned, after which it discharges the refuse.