Practical Steam and Hot Water Heating and Ventilation; A Modern Practical Work on Steam and Hot Water Heating and Ventilation, with Descriptions and Data of All Materials and Appliances Used in the Construction of Such Apparatus (Paperback)
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DescriptionThis historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ... air in the ventilating ducts, inducing an upward circulation, 'which exhausts the foul air from each room and discharges it into the atmosphere under the canopy at the top of the chimney. This method of ventilation, in connection with indirect or seinidirect radiators for warming, is quite successful and by slight modifications may be readily adapted for many small build Fig. 203.--Iron clamps for supportI 10. (JOI.--Construction of ventilating shaft. ing stack. nigs. For residences this method may be employed in place of the ventilating shaft as previously mentioned. The movement of air in the vertical or main vent flues should not be less than 6 feet per second. With an arrangement of the nues as described above, if properly constructed, this velocity, or even a greater, should be easily obtained. Make the register openings of such sizes that the velocity ('t (he air through them will not be more than one half that in the vertical duct, or in other words, not more than 3 feet per second. If this schedule is adhered to, no perceptible draughts will abound or be felt by the occupants of a room. When semidirect radiators are used for warming the entering air, the dampers may be adjusted to suit the state of the weather. With indirect radiation the registers should equal in size and open area those used for foul air. Definite results as to air volume and velocity may be obtained by properly proportioning the amount of heating surface and the sizes of hot and cold air ducts. This is particularly true in cold weather when the maximum amount of pure air would be supplied to the building. There seems to be no question but that the combination of gravity ventilation and indirect heating is one that gives varying quantities of air dependent on atmospheric conditio...
- Published: 01 May 2012
- Format: Paperback 84 pages
- ISBN 13: 9781236143273 ISBN 10: 1236143272
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