Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 493
FiG. 21. LouvERED Dampers. men who are specialists in this field. The piping system must be nm true and straight withdue allowance for drainage, and drip cocks should be installed at all low points. Galvanized 468 HEATING AND VENTILATION
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
