Illinois Society of Architects · Chicago · leaf 186
alArea ofInsideStackPipe. Volume of air in cubic feet which can be heated, one side of room exposed. Volume of air in cubic feet which can be heated, two sides of room exposed. 8x 10 53 8 50 4x 10 29 1600 1300 9x 12 72 9 64 4x12 35 2100 1800 10 X 12 80 10 79 4x 14 41 2400 2000 10 X 14 93 10 79 6x… … PORTER HOT-AIR FURNACE Largest Fire Pot,Greatest Radiating Sur-face,Circular Flue Radiator,Hollow Grate Bars. MANUFACTURED BY FRANK F.PORTER 317 W. 63(1 Street, Chicago
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
