Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 228
= 180,000 heat units. This, di-• videil by 40,000, the heat utilized per square foot ofgrate, equals 4^ square feet of grate required. Some judgment is necessary in assuming therate of combustion; but this varies from about 3 pounds per squarefoot of grate per hour in small heaters, to 7 or 8 in… … Fig 91. Breast Drill. Fig. 02. Tool for Drilling Pii)e Flanges. 3 Fig. 93. Cold Chisel. radiator may be used for steam, but a steam radiator cannot be usedfor hot water. The valve may be placed at the top or the bottom—it 188 STEAM AND HOT WATER FITTING 55 matters little which; it is, however, more…
Architecture · Building · Carpentry
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