| Answer | Crossword Clue |
|---|---|
| COAL | Fuel for an old furnace |
| COAL | Fuel in an old furnace |
| COAL | Old furnace fuel |
| COAL | Old-time furnace fuel |
| COKE | Fuel for a blast furnace |
| stoker | mechanical device for supplying coal or other solid fuel to a furnace |
| stokers | A mechanical device for supplying fuel to a firebox or furnace, esp. on a steam locomotive |
