Illinois Society of Architects · Chicago · leaf 538
The Dunham Paciless Inlet Valve … 536 metically sealed is ventilated to a certainextent. A room heated with steam or hotwater direct radiation and with all the win-dows and doors closed is ventilated by theamount of air leakage, due to the fact thatneither the doors nor windows nor even thewalls are air tight and there is a…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
