炉渣

Traditional form:

爐渣

Pinyin (reading):

lúzhā

Definitions:

• furnace slag
• ashes from a stove

Characters:

• 炉 - fireplace, furnace, oven, stove
• 渣 - dregs, sediment; refuse, slag

Traditional characters:

• 爐 - fireplace, furnace, oven, stove
• 渣 - dregs, sediment; refuse, slag