hus freely circulated , with the advantage of having a mode - Fig . 29 . — Overhead Flue Boilers . Longitudinal and Transverse Sections . aa , Furnaces . ß , Combustion chamber . c , Flues . dd , Circulating tubes . e , Uptake . rate body of water , which , under certain circumstances , conduces to… … Fig . 30 . — Overhead Flue Boilers . Longitudinal and Transverse Sections . aa , Furnaces . b , Combustion chamber . c , Flues . d , Smoke - box . e , Uptake . boiler in extensive use materially differs from the foregoing example . The flues are quite narrow , and are arranged overhead , similar to…
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