Mechanical Contracting & Plumbing January-December 1912 . rovided. Damper So in the modern plant, the entireheating system should be relieved of airand gases which would otherwise pre-vent free circulation and which in manystpam heating plants are responsible forpounding noises, cold ends of radiators,leakage of water, steam and foul odorsinto the rooms. work being put on the power plant, oradditional fuel consumption being requir-ed. This is a concrete case where theoryis reduced to practice. A self-containedheating agent doing ics work with abso-lute accuracy, convenience and comfort. In man
Mechanical Contracting & Plumbing January-December 1912 . rovided. Damper So in the modern plant, the entireheating system should be relieved of airand gases which would otherwise pre-vent free circulation and which in manystpam heating plants are responsible forpounding noises, cold ends of radiators,leakage of water, steam and foul odorsinto the rooms. work being put on the power plant, oradditional fuel consumption being requir-ed. This is a concrete case where theoryis reduced to practice. A self-containedheating agent doing ics work with abso-lute accuracy, convenience and comfort. In many instances this kind of a plant \ \rinr Wafer Jim* Jr Basement Plan. By using the exhaust steam for heat-ing, the cost of steam production inwinter is but little, if any greater thanin summer. It has been proven beyond questionthat exhaust-steam, where the oil hasbeen properly eliminated, is as valuablefor heating purposes as live steam. Inother words, the exhaust which in alarge measure is thrown away, is suffi-cient to heat the building without extra. Elevation showing boiler and equipment for heat regulation heating system under pressure. 12 and for placing has paid for itself in three years and ifthis can be done, in some cases, it canbe done in most cases if the forethoughtof an experienced engineer is applied inthe design and installation of the plant. The loss of one cents worth of ex-haust steam per minute amounts toabout $1,000 a heating season or 5 percent, on a $21,600 investment. Before the vacuum heating systemswere introduced, steam was circulatedby pressure, the best specifications call-ing for from two to five pounds and inmany cases where experienced engineersbad not been employed to design thesystems, a much higher pressure thanthis was required to circulate the steamand heat the building. When exhaust steam was used, supple-mented by live steam for heating, inbuildings having steam, hydraulic steam,elevators and other pumps and steam en-gine for power and li
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