Identifier: practicalsteamho00king (find matches)
Title: Practical steam and hot water heating and ventilation
Year: 1908 (1900s)
Authors: King, Alfred G. (Alfred Grant), b. 1866
Subjects: Steam-heating Hot-water heating Ventilation
Publisher: New York : N. W. Henley Pub. Co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 23,5.—Sturtevant method of factory beating. In one sense the heating of factories in this manner far excelsall other methods. The moving belting, shafting and machineryall tend to break up the currents of air and assist in its distribu-tion, and the further fact that the operatives in a large percentageof all factories are on their feet and moving about, are not assusceptible to draughts or air currents as would be the casein a factory where the employes were continually sitting or re-mained inactive. This circumstance renders the location of airoutlets and the installation of blower systems a comparativelyeasy task. The shape and size of the building and the usage to which it isput are factors which largely govern the form of the apparatusand the method of installation. MECHANICAL VENTILATION ^55 Relative Cost of Installation and Operation No direct conipurison between the cost of inshilllno- a fan orblower system and any one of tlie otiier methods of heating, viz.,
Text Appearing After Image:
Fig. 236.—Another foi-m of factory heating. furnaces, steam or hot water, can well be made, as the cost of ablower system increases or decreases according to the rates of air ^56 PRACTICAL HEATING AND VENTILATION change demanded, that is, the number of times per hour, the airwithin each room shall be changed; in other words, according tothe size of the apparatus and not necessarily according to the sizeof the building. On the contrary, the cost of a direct or indirectsystem of heating, steam or hot water, without ventilation, increasesin proportion to the size of the building and the added cost for ven-tilation may be much or little, corresponding to the amount ofventilation or air changes secured. It has been suggested that as a people we will not tolerate coldrooms, but that we will tolerate a vitiated atmosphere, to whichwe w^ould add that such toleration on the part of the owners ofmany buildings is carried to such an extent that the buildings fre-quently are unsanitary and unhe

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