San Francisco : Architect and Engineer, Inc · leaf 505
,000 Btu per hour each. The21 heaters of 1,250,000 Btu capacity have been in service since the mill was put into operation, andthe other 11 were installed in 1949. All 32 of the heaters are fired by natural gas ata pressure of five ounces at the burners, reducedfrom line pressure by regulators.… … CLOSE UP OFHEATER UNIT Rectangular duct carries warmair stream to ducts over ma-chines; pulls cold air in fromout of doors, heats, and sendsthru duct. In summer, burner isturned off, and cool fresh airis sent thru ducts. perform his (or her) various duties in comfort andwithout lost time. The…
Architecture · Building
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