Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 61
ly the work to be donel)y the air tintl the water; else one will operate at the expense of theother. One square foot of heating surface in contact with the fire iscapal)le of supplying from 40 to 50 square feet of radiating surface, 4S 34 HEATING AND VENTIT>ATION and one square foot suspended… … — ■.V\^^l,^~ ■I Fig. 12. Combination Furnace, for Heating by Both Hot Air and Hot .Water. manufacturers and have them proportion the surfaces as their experi-ence has found best for their particular type of furnace. Care and Management of Furnaces. The followinp; generalrules apply to the…
Architecture · Building · Carpentry
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