Jōyō kanji, Taught in junior high
JLPT level: N1
1359 of 2500 most used kanji in newspapers
Stroke count: 8
Meaning: hearth, furnace, kiln, reactor
Kunyomi: いろり
Onyomi: ロ
Composition: 火 戸
Radical: 火
Meaning: fire
炉 (ロ) hearth, fireplace, furnace, kiln
炉心 (ロシン) nuclear reactor core
原子炉 (ゲンシロ) atomic reactor, nuclear reactor
高炉 (コウロ) blast furnace