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 25
Fig. 7.- -Diagram of a separate returnsteam system. 14 MECHANICS OF THE HOUSEHOLD Of all the methods of steam heating where the water of con-densation is returned to the boiler by reason of gravity this isthe most satisfactory. This plant requires a larger amount ofpipe than the other systems…
Heating · Lighting · Plumbing
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