Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 185
c heaters show efficiencies as high as 70 per cent, requiring a con-sumption of from VAto2 cu. ft. of ordinary illuminating gas per gaUon of water heated, whichwith gas at 80c per 1000 cu. ft. makes it possible to heat 8 gallons of water 100° F. for 1 cent.The manufacturers will seldom guarantee… … Fig. 3. Ruud Instantaneous Tank Water Heater. able length and diameter as .shown in Fig. 4. The.se coils form the heating elements justabove the burners, with the coil cf largest diameter and shortest length, therefore passing themost water, placed at the bottom where the greatest heat exists. Any…
Building · Heating · Ventilation
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