Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 258
cting blades of galvanized iron, setin a vertical position and at varying angles, so that the air is throwntowards each side as it issues from the register. The size of thevent flues should be about the same as for a gravity system—that is,about 6 square feet for a standard classroom, and in the… … i^3J.£AS 3MJVJH O-L XSnVNX3 211 202 HEATING AND VENTILATION quantity of air at all times without the aspirating effect of the vent flues. The nuthod of piping shown in Fig. 173 applies especially tobuildings of large size. In the case of medium-sized buildings, itis often possible to use pin…
Architecture · Building · Carpentry
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