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• <br /> ESTIMATED SIZING GUIDE <br /> A) Building length <br /> B) Building Width . <br /> C) Building Height <br /> D) Type of Building Factor <br /> Rambler = L333 <br /> 7 Split = 1.50 <br /> Two Story = total exposed wall (c) <br /> Meat loss �tait��e <br /> I) Line A' x Line B 30 x Line C x Line DA---:Cubical Content <br /> 2) Heat loss factor <br /> Newer energy efficient = 3.5 <br /> Average built home = : ,O <br /> X Older home poor insulation = 6.0 <br /> 3) Cubical Content x H.L.F. � = Est. Heat Loss e <br /> A/C S gjp Gui4 <br /> 1) Line A x Line B x Line C x Line D = Cubical Content /5CC-) <br /> 2) Cubical Content x 4 (air changes p/hour) = Total C.F.I `7 Z o6-e-) <br /> 3) Line 2/ 60 minutes p/hour = Total C.F.M. /2CL7 <br /> 4) CFM/400 (au p/ton) _ Total tons of cooling _ <br />