Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 572
. No draughts, dirt, dust or moisture in this system. First cost the only one. We also install Forced Draught Systems, in any part of the country, under expertsupervision. HEATING, VENTILATING AND DRYING APPARATUS 501 ANDREWS & JOHNSON CO, PRODUCTS. ANDREWS & JOHNSON CO. Heating,… … 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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