fire box

  1. The hearth of a metal-forging shop; the forge of a smithy.
  2. An enclosed hearth with hatch for refueling that is attached to or built into a boiler that supplies steam for mechanical power.
  3. The internal hearth of a furnace, stove, or heater.
  4. The hearth of an outdoor grill.

burner port

furnace room

fire-pot

firing box

firing chamber

combustion space

blast chamber

fire chamber

burning chamber

fuel chamber

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