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<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> Stack effect pressure difference per metre of height from the neutral plane as a function of outside temperature, for an inside temperature of 21 °C. Positive values mean normal, negative values reverse stack effect. Based on Klote (2002), pp. 4-274 to 4-275.<br /> <br /> Original vector illustration for [[Stack effect]], level 2 Intermediate.<br /> <br /> * Source basis: Klote (2002), pp. 4-274 to 4-275 (Equation 1 and Figure 4-12.3; redraw, do not copy); Ferreira and Strege (2005), p. 14 (New York winter design temperature −9.4 °C)<br /> * Alt text: Falling line of pressure difference per metre against outside temperature from minus 40 to plus 40 °C, crossing zero at 21 °C.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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