Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 617
ling any of the castings orcutting the casings. Further particulars concerningthis style of Furnace will be furnished on request. The Excelsior Furnace Style F for soft coal (Fig.3) is so constructed that a sufficient supply of heatedoxygen is introduced into the combustion chamber, thusinsuring… … FlG. EXCELSIOR FURN.ACE F P.^TTERNFor Hard Coal
Building materials
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