Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 110
andsteam. The principles involved in indirect steam heating are similarto those alreadv described in furnace heatin:. Part of the heat fjivenoff by the radiator must be used in warming up the air-supply to thetemperature of the room, and part for offsetting the loss by conductionthrough walls and… … Fig. 58. -Box Coil, Built Up of Wrought-Iron Pipe, for Indirect-Steam Heating. is large as compared with the exposed wall and window surface, weshould proceed as follows: First compute the B. T. U. required for loss by conductionthrough walls and windows; and to this, add the B. T. U. requiredfor…
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