noun
fire bed; fire grate; hearth
Refers to the part of a stove, furnace, or traditional hearth where the fire is built and burns; a technical or somewhat literary term.
鍛冶屋は火床で鉄を熱した。
The blacksmith heated the iron on the fire bed.
古いストーブの火床に薪をくべる。
Put firewood on the fire grate of the old stove.