Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 642
and steam heat-ers of 2 pounds pressure at the heaters. Guarantee—The Rapid Heaters are conservatively rated according to ac-cepted standards and what actual use has proven to be correct, but on account Fig. 5. rapid steam heaterof the varying conditions surrounding their installation over which we…
Building materials
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