Illinois Society of Architects · Chicago · leaf 582
inches. Also that in all installations of steam boilerthat drain valves be placed on the returnsand that the condensation from such returnsbe discharged into the sewer for a period offrom three days to one week after startingfire, thereby clearing system of grease anddirt. At the end of this period… … ROUND TYPE RROUND JACKET *T*
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
