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heat loss guide slideshare part 7

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STEP 7: Calculate the heat loss through infiltration by crack method q (Btu/h) = 1.1 * V (cfm) * DT (°F) V (cfm) = S(P*leakage rate) each window V (cfm) = 18*(3’ + 3’ + 4’ + 4’)*(0.10 cfm/ft) = 25.2 cfm q (Btu/h) = 1.1 * (25.2 cfm) * 80.1 °F = 2,220 Btu/h

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  1. 1. STEP 7: Calculate the heat loss through infiltration by crack method q (Btu/h) = 1.1 * V (cfm) * T ( F) V (cfm) = (P*leakage rate)each window V (cfm) = 18*(3 + 3 + 4 + 4)*(0.10 cfm/ft) = 25.2 cfm q (Btu/h) = 1.1 * (25.2 cfm) * 80.1 F = 2,220 Btu/h

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