Document 70N4X9DNrY4ja8awoxDKEjadj

American Society 0/Heating, ow< Ventilating Engineers Guide, 1931 Warm air heating systems, description, of Warm atr systems; gravity booster circulation description-of. design o forceddrculation heat losses leader pipe sizes problem wall stacks Water line in steam boilers Water requirements Water supply formulae pipe sizes for regulation of temperature requirements - Page-. 95 108 95 96 108 96 97 107 100 221 294 294 295 302 294 Water temperature Water, thermal properties of (table) Weatherstripping Weight and volume relationships Weights of materials (table) Welding of pipe Wet and dry-bulb temperatures Wind action in natural ventilation Wind movement. effect on heating requirements Wind velocity factors Wrought pipe Z Zoning of heating and ventilation Page 184, 302 21 275 13 20 321 399 420 88 75 317 533 ssrwrw' EDITORIAL ACKNOWLEDGMENT IT is the purpose of The A.S.H.V.E. Guide to maintain its leadership as the standard authority of the heating and ventilating profession. To accomplish this objective, it is necessary to coordinate the results of the latest research with the practice of the outstanding engineers of the profession by recording the most up-to-date information and data avail able on each phase. The editorial staff of The Guide therefore is made up of heating and ventilating engineers of unusual qualifications, who are specialists in the subjects to which they are invited to contribute. The Guide Publication Committee is greatly indebted to the following engineers through whose efforts The Guide 1931 has been made possible, and who have given their services without compensation or thought of reward other than the satisfaction of having performed a public service: 0. W. Armspach W. S. Bondy D. R. Brewster J. C. Butler A. C. Davis T. J. Duffield J. E. Emswiler J. L. Fa den P. E. Fansler W. G. Frank S. McK. Gray W. E. Heibel R. H. Heilman F. C. Houghten H. B.Johns R. L. Jones F. A. Kitchen L. L. Lewis E. A. May H. C. Murphy Percy Nicholls H. W. Pfeffer W. A. Rowe G. K. Saurwein W. M. Sawdon W. H. Severns Perry West H. M. Wylie In behalf of the members'of the Society and the profession at large, the Guide Publication Committee extends its sincere appreciation for the loyal cooperation given by these workers whose efforts have made The Guide 1931 the largest and most comprehensive of these annual reference volumes. GUIDE PUBLICATION COMMITTEE D. S. Boyden, Chairman V. S. Day R. V. Frost S. R. Lewis J. F. McIntire P. D. Close, Technical Secretary XI S