Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 138
PC Z •< PL, ou uu HH(A ■a:z ■< Q z Ote. oiUoi O w MU O M o 3^^ o .- ■2 -^ <r> •I «.a a o Q .S o CO •au … <U >^ < Sou MCdH(/} ««!Z <: O zo MM 13O» H » i-i p. to C :S — m O O :§ S o■S el o E J! HEATING AND VENTILATION 97 and the water above the diaphragm is forced out through the pet-cock G, which is kept slightly open all the time. DIRECT HOT=WATER HEATING A hot-water system is similar in…
Architecture · Building · Carpentry
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