Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 572
HEATING. Fig. I. CIRCULATING FAN AND AIR MIXING CHAMBER The illstration herewith shown (Fig. i) is our Patent Hot Room Arrangementfor heating and ventilating by the Mechanical Blast System. The apparatus consists of ablower or blowers (driven by en-gine or motor), heating coils, plenumchamber, and…
Building materials
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