Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 263
way, electric ventilating fans are often used. Thesegive especially good results in warmer weather, when natural venti-lation is sluggish. The temperature may be regulated either byusing the double-duct system or by shutting off or turning on a greateror less number of sections in the main heater.… … Fig. 174. An Approved Method of Delivering Warm Air to the Audi-torium of a Church. 216 HEATING AND VENTILATION 207 theaters, a wide experience and the greatest care are necessary tosecure the best resiUts. A theater consists of three parts: the bodyof the house, or auditorium; the stage and…
Architecture · Building · Carpentry
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