File:An outline of ventilation and warming (1899) (14595675230).jpg

Identifier: outlineofventila00bald (find matches)
Title: An outline of ventilation and warming
Year: 1899 (1890s)
Authors: Baldwin, William J. (William James), 1844-1924
Subjects: Ventilation Heating
Publisher: New York, The author
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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y//g<^/^/yJ<^/^/^/^j;^^^ VENTILATION. 6l the head-line, as the quantity of air sufficient forschool or hospital ventilation cannot, as a generalthing, be admitted near the floor, on account of itslow temperature^ without inconvenience to theoccupants. Seven (7) to eight (8) feet, therefore,is considered the proper level for the lower edge ofthe heat register in schools and hospitals. When the register is above the head-line, it alsopermits of a smaller sized register than could betolerated at the floor. It has been said that i^feet per second is about the velocity at which airshould enter a school or hospital without causingdraught. This is not the case, however, when air is ad-mitted above the head-line, 1^2 to 2 times the areaof the flue being good practice, with a velocity of4 to 6 feet per second through the register. School rooms are generally planned with win-dows on two sides, and many seem to think thatthe warm air register should be placed in one ofthe side walls as nea

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