焚たき口ぐち

noun

fuel door; stoking door; furnace door

Refers to the opening or door through which fuel is added to a furnace, stove, boiler, or similar heating device.

• ストーブの焚たき口ぐちから薪まきを入いれた。

  I put firewood in through the stove's fuel door.

• 古ふるいボイラーの焚たき口ぐちが錆さびついている。

  The fuel door of the old boiler is rusted.