bumwood
/ˈbʌm.ʊ.ʊd/Definitions
1. noun
A type of firewood, especially oak wood, used for burning.
“The old man huddled near the fire, warming himself with the bumswood.”
2. noun
A type of wood used for making bums (pieces of wood used to produce a draft in a chimney or fire).
“The chimney sweep used bumswood to help clear the chimney.”