San Francisco : Architect and Engineer, Inc · leaf 630
TORIES • RESEARCH AND INVESTIGATION . TESTS OF STRUCTURAL MATERIALS DESIGN OF CONCRETE MIXES SHOP AND ERECTION INSPECTION OF STRUCTURES AND EQUIPMENT INVESTIGATION OF STRUCTURES AND MATERIALS TESTS AND INVESTIGATION OF FOUNDATION SOILS FIRE RESISTANCE AND INSULATION TESTS 624 Sceramcnto Str*«t, San… … Separate switches for fan and heat arelocated near top of heater for more con-venient operation and a new Neon indi-cator glows when heater is working; unithas a louver grille which forces the flowof warmed air downward to warm roomfrom the floor up. Resistance coils areNichrome wire and fan action…
Architecture · Building
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-337-208.webp)
