Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 73
Fig. 19. Wroiight-Irou Pipe Radiator. 55 46 HEATING AND VENTILATION is called a viitcr coll, arid is used imder the same conditions as a trom-bone coil if there is room for the vertical portion. This form is notso pleasing in appearance as either of the other two, and is found onlyin factories or… … Fig. 20. Common Form of •Br;iufh Coil for Circulation of Direct Steam. Overhead coils are usually of the miter form, laid on the side andsuspended about a foot from the ceiling; they are .less efficient thanwhen placed nearer the floor, as the warm air stays at the ceiling andthe lower part of the…
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