Illustrations of the theory and practice of ventilation : with remarks on warming, exclusive lighting, and the communication of sound (1844)
Reid, D. B. (David Boswell), 1805-1863 · London : Longman, Brown, Green, & Longmans · leaf 455
fresh air descends from a higher altitude to the chamber of sup-ply, a course which is constantly resorted to where vitiated airpredominates at the surface of the ground. A central boilersupplies warm-water pipes placed in the basement. Air fromdrains escapes directly into the vitiated air-shaft… … tion of individual flues, h It, in a common viated air-chamber inthe roof. Fig. 315 shews the mode of connecting a descending shaftwith the flue in the roof, where sufficient altitude cannot be ob-tained there for determining the velocity required in the dis-charging current. In all cases where…
