Putnam, J. Pickering (John Pickering), 1847-1917 · Boston, Ticknor and Co. · leaf 184
raggregate sectional area as small as that of the main pipe (Fig. 133). In the Chilson Furnace (Fig. 134) the means adopted for equalizingthe ascent of the smoke in the various upright flues is the tapering of theseflues as they ascend. Where they join the horizontal ring above, theiraggregate… … Fig. 133. The Peerless Furnace. 100 THE OPEN FIREPLACE. side to the ascending air current, and therefore is less effective in heat-ing it than a perpendicular pipe, which ma} be entirely surrounded by the air. The conical surfaces of thepipes of the Chilson Furnace areopen, in a certain degree, to…
Fireplaces
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