San Francisco : Architect and Engineer, Inc · leaf 425
boilerhas a thermal efficiency of 83, which spellsoperating economy because more than four-fifthsof the heat value of the fuel oil is converted intouseful heat and absorbed by the boiler. The unithas been given a rating of 150.000 B.T.U. out-put per hour, affording ample capacity to meet theheating… … OIL HEAT SERVANT MEASUREMENTS 60 tubing, rustless and leakproof. which is built inbelow the water line of the boiler. The coppercoil is submerged in the hot boiler water, and thecold water which enters the coil at the top isquickly heated in its passage through the coil,providing a capacity of si.x…
Architecture · Building
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