| Answer | Crossword Clue |
|---|---|
| flues | pipe for conveying flame and hot gases around or through water in a steam boiler |
| flue | pipe for conveying flame and hot gases around or through water in a steam boiler |
| turbos | any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as a fluid passing through and e |
| turbo | any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as a fluid passing through and e |
