Putnam, J. Pickering (John Pickering), 1847-1917 · Boston, Ticknor and Co. · leaf 209
resh air are very numerous or under each seat. In this case the exhaustregisters may he in the side walls and even near the ceiling. An excellent example of this maybe had in the finely ventilated Madison Square Theatre, of New York, a model worthy of study. 124 THE OPEN FIREPLACE. effected. Fig.… … Fig. 147. Exhaust Register placed too high. ing the results would be the same. The hot air first forms itself alongthe ceiling in an even horizontal stratum, just as oil lies on the surface ofa bod} of a heavier fluid, such as water. As more hot air enters, the firstdescends and gives place to it.…
Fireplaces
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