Heating, Ventilation and Lighting 



189 



We will not deny this. Still one cannot but reflect that the man who has 

 the courage to tackle more than one of these propositions has more pluck 

 than the majority 

 of mortals. 



One register 

 (preferably that in 

 the hall) should 

 have the louver 

 slats removed so 

 that it may always 

 be open. This will 

 prevent an accum- 

 ulation of heat if 

 the other registers 

 should be closed. 

 The heat duct 

 should never run 

 straight up from 

 the furnace; its flat 

 run should extend 

 several feet beyond 

 the outer limit of 

 the heater. 



Heat ducts 

 passing between 

 floors or through 

 wooden partitions 



should have an inner and outer pipe with an inch air space between them. If 

 within 12 feet or less of the heater, asbestos sheathing may well be used in addition, 

 being carried to a distance of perhaps 25 feet from the source of heat. They 

 should be at least 3 inches from studs and floor timbers, and the adjacent 

 lathing should be of metal. A metal shield, suspended from the floor timbers, below 

 them and free from the heater, is an excellent protection for the woodwork. 



In steam and hot-water heating the heater is, as in the case of the furnace, 

 centralised, and the steam or hot water distributed through pipes to coils or 

 radiators. These several sub-centres of heat distribution are placed in three 

 ways, which give three different methods of heating. Radiators placed in the 

 rooms to be heated heat the air already in the rooms; this is called the direct system. 

 Coils of pipe placed in metal chambers under the rooms to be heated, or nearly so, 

 receive fresh air from the outside and deliver it heated, through vertical ducts to 

 the rooms above; this is called the indirect system. Radiators placed in the 

 rooms to be heated (or coils in recesses in the walls), receiving fresh cold air 

 upon them, deliver the same heated to the rooms in which they are placed; this is 

 called the direct-indirect system. 



Direct radiation is at once the cheapest and most common system. For 

 the country house, however, it should not be used in the living rooms on 



An adaptation from the Japanese. Simple and effective, especially the natural-wood finish. 

 Fall River, Mass. Cram, Wentworth & Goodhue, architects. 



