Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 273
Fig. 176.. Coimectinns of Outer Oroups of*Pipes of Greeiiliouse Showu in Fig. 175. … Fig. 177. Connections of Inner Groups of Pipes of Gi-eeuhouse Shown in Fig. 175. 222 IIEATIXG AXD VEXTILATIOX 213 heater continuously. This is usually accomplished by closing themain vent flues and the cold-air inlet to the building, then opening theclass-room doors into the corridor-wavs, and…
Architecture · Building · Carpentry
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