Illinois Society of Architects · Chicago · leaf 233
WHEN YOU WANT THE BEST RESULTS SPECIFY THE VAN AUKEN SYSTEM OF VACUUM HEATING HUNDREDS OE PLANTS IN 8UCCES5EUL OPERATION SEND EOR LIST. BOOKLET AND TESTIMONIALS CONSOLIDATED ENGINEERING CO. 42 W. JACKSON BOUL., CHICAGO American Engineering Specialty Company AGENTS FORWEBSTER SYSTEM OF HEATING… … Kevvanee: Boiler C^mf^anyiI 232 In the case of water being used, an expansion tank is necessary, for as the tempera-ture of water rises until at the boiling point it is 5 per cent, greater than at 40 degreesthe increase must be provided for, so that when cooled the system will still be full…
Architecture · Building · Architects
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