Rating | Solver | Clue |
---|---|---|
KETTLES | Water boilers | |
URNS | Water boilers | |
FEED | The water supplied to steam boilers. | |
FEEDER | A device for supplying steam boilers with water as needed. | |
FUR | The deposit formed on the interior of boilers and other vessels by hard water. | |
ECONOMIZER | Specifically: (Steam Boilers) An arrangement of pipes for heating feed water by waste heat in the gases passing to the chimney. |