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Simple Heatina SvStem Slze �__dronic vcrsion availablc aL• http: vn•nv encrov w�.Oco�.�=��cuIDS°��.�sjPn�a�n,LCw�Zo�xs� � <br /> Indoor Design Temperature 24 <br /> Outdoor Design Temperature <br /> Design Temperature Difference (�T) �6 <br /> �T= Indoor-Outdoor Design Temp � <br /> Conditioned Floor Area <br /> Conditioned Volume <br /> Glazing �� <br /> Copy Sum of UA from Glazing Schedule <br /> Attic U-Factor X Area = UA <br /> R-49 0.027 � � <br /> R-38 Advanced D.026 <br /> Single Rafter or Joist Vaulted Ceilings _ UA <br /> U-Factor X A� � <br /> R-38 Vented 0.027 <br /> Above Grade Walls U-Factor X A� �� <br /> R-21 0.056 <br /> Floors U-Factor X A� � <br /> R-30 0.029 <br /> Below Grade Walls U-Factor X Area = UA <br /> 2' Depth Walis 0.042 <br /> 3.5' Depth Walls 0.041 <br /> 7' De th Walls 0.037 <br /> Slab Below Grade F-Factor X Len th = UA <br /> 2' Depth 0.59 <br /> 3.5' Depth 0.64 <br /> 7' De th 0.57 <br /> Slab on Grade F-Factor X Len th = UA <br /> R-10 2' perimeter 0.54 � <br /> R-10 Full - Heated 0.55 <br /> Sum of UA �� <br /> Envelope Heat Load �Btu / Hour <br /> Sum of UA X�T <br /> Air Leakage Heat Load �Btu / Hour <br /> ((Volume X 0.6)X:1T1 X .018)) <br />� Building Design Heat Load �Btu / Hour <br /> Air Leakage + Envelope Heal Loss <br /> Building and Duct Heat Load r_� r_�Biu / Hour <br /> If ducts are located in unconditioned space: Sum of Building Heat Loss X 1.15 <br /> If ducls are located in conditioned space:Sum of Building Heat Loss X 1 <br /> Maximum Heat Equipment output 150% �Btu / Hour <br /> Bullding and Ducl Heal Loss X I.50 <br /> Duct 7estina CalculaMr <br /> (Electronic version available ah http:(l�wns��ner9�wsu eAu/Documents/Duccandblowerdoortestinqwiculator.xlsx ) <br /> 02/11 <br /> S:�.DSG\F ORMS\2009Re s identialEnergyCalcForm.docz <br />