炉 means “hearth, furnace”

ろ · ro

Also: kiln, reactor

Kun'yomi (Japanese reading)
いろり
On'yomi (Chinese reading)
ロ

JLPT N1 · Taught in secondary school · 8 strokes

The story

Fire (火) behind a door (戸): a furnace you open to feed. 炉 is a hearth or furnace: 囲炉裏 is the sunken hearth of an old farmhouse, 暖炉 a fireplace, and 原子炉 the reactor at the heart of a nuclear plant.

Used in 暖炉 (danro, fireplace), 原子炉 (genshiro, nuclear reactor), and 囲炉裏 (irori, sunken hearth)

More from Fire & Flood

Learn 炉 and more kanji free on Fuji Learning · All kanji

Readings from KANJIDIC2, © EDRDG, CC BY-SA.