| Answer | Crossword Clue |
|---|---|
| STACK | Smoke passage |
| FLUE | Smoke passage |
| FLUE | Passage for smoke. |
| flues | passage for smoke, air, or gas |
| flue | passage for smoke, air, or gas |
| takeup | pipe or passage leading upward from below, as for conducting smoke or a current of air |
| uptake | pipe or passage leading upward from below, as for conducting smoke or a current of air |
