Illinois Society of Architects · Chicago · leaf 502
Connection tcReturn M*.in Gravity hot water heating systems may bedivided into two general heads, viz.: Shortcircuit systems and non-short circuit sys-tems. These may be subdivided into up feed,feed, down feed. etc. In the short circuit system tlie flowreturn mains run parallel, grade up awayfrom…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
