Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918)
Keene, E. S. (Edward Spencer), b. 1864 · New York, McGraw-Hill book company, inc.; · leaf 234
lass that directs the cold airupward where it mingles with the heated air with the least pro-duction of a noticeable draft. This is the most efficient methodof house ventilating where no special provision is made for theadmission of fresh air. The object sought in ventilating a room is to keep up… … Fig. 163.—A chimney flue used as a ventilator. If the discomforts of drafts are to be avoided, this mixing proc-ess must be brought about by admitting the cold air at theupper part of the room. Warm air rises to the top of the room because it is lighter thanthe colder air beneath it. The coldest…
Heating · Lighting · Plumbing
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