OCR Text |
Show Ventilating a Building. Tho heating of the ofTlces Is well enough; but tho ventilation Is very largely neglected. These two are so closely related that they should be considered con-sidered together. Present practice is to provide a radiator for heating controlled con-trolled either by hand or by thermostat for each olllce unit, and to provide ventilation ven-tilation by opening tho window; tho foul air passing Into tho hall. The ideal arrangement would' be to introduce a fixed amount of warmed, fresh clean air to each office unit at any predetermined predeter-mined temperature automatically, and all past attempts may be classed as failure for general use. In fact, thero may be said to be no existing way of prdperly warming tho bulk of the offices of an office building without tho constant con-stant use of a Httlo knowledge, Intelligence Intel-ligence and trouble. The foul air can be drawn off into a vent shaft placed at any convenient place. For banking and similar large rooms on. lower stories, tho standard hot-air heating system, with either exhaust or blast fans, works with entire satisfaction and but littlo loss of valuable room, but tho air inlets should bo always eight feet above tho lloor and at least five feet from ceiling, and the outlet for foul ?lr should be near the floor and large enough to have a low velocity (less than ten feet per second). Then the occupants oc-cupants will not feel a draught. Tho Inlet In-let radiators must be high up, because it is at tlmeB necessary to introduce, the fresh air at a temperatUro lower than 100 degrees F. when It feels cold and produces the effect of a draught. If the fresh air forms a current Mowing Mow-ing always In one direction, surfaces near it will get very dirty, and we ore therefore compelled to keep away from the celling. George Hill, in the Architectural Archi-tectural Record. |