Popular (jouyou) Kanji are highlighted.
Note that English meaning under each Kanji is just one of many other possible senses.
灬
fire
火fire
灯lamp
灰ashes
灮 灸moxa cautery
灵spirit
灶kitchen range
灾calamity
灼miraculous
災disaster
炁breath
炅brilliance
炆 炔acetylene
炕the brick-bed in northern China
炖 炗 炘brilliant
炛 炙roast
炒broil
炉hearth
炎inflammation
炊cook
炟 炻a kind of china
炭charcoal
炤illumine
炫shine
炰roast
炱soot
炴 炷candle wick
炯light
炬torch
炸frying
炳clear & bright
炮burn
点spot
烬cinders
烊to smelt
烑 烓stove
烔heat
烕to destroy
烖calamities from Heaven, as floods, famines, pestilence, etc.
烘bake
烜light of the sun
烤bake
烟smoke
烋boasting
烝many
烙burn
烈ardent
烏crow
焈 烺(said of fire) bright
焃 焄rising flames
焅 焆 焇 焋 焌to light
焏 烱light
焉how
烽signal fire
㷀solitary
焮heat
焼bake
焦char
焞dim
焠anneal
焫 焭 焯 焰flame
然sort of thing
焱flames