Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 55
sement is of sufficient height to allow it. A dampershould be placed in each pipe near the furnace, for regulating the flowof air to the different rooms, or for shutting it oft* entirely when desired. 41 32 HEATING AND VENTILATION While round pipe risers give the best results, it is not…
Architecture · Building · Carpentry
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