hot-blast stove
Technical term used in metallurgy, especially in blast furnace operations, for a stove that preheats air blown into the furnace.
製鉄所では熱風炉が重要な役割を果たしている。
Hot-blast stoves play an important role in steelworks.
Compound of 熱風 (hot blast) + 炉 (furnace/stove).