Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 107
fa smaller quantity heated to amuch higher temperature.This gives a more agreeable(juality to the air, and rendersit less dry. Direct and indi-rect systems are often com-bined, thus providing the liv-ing rooms with ventilation, while the hallways, corridors, etc., haveonly direct radiators for… … Fig. 51. Steam Heater Connected to Wall Reg-ister.—Indirect Sjsteiu.
Architecture · Building · Carpentry
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