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simple heating System Size: Washington State <br />This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA Manuals <br />J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling loads. <br />Please complete the green drop -downs and boxes that are applicable to your project. As you make selections in the drop -downs for each section, some <br />values will be calculated for you. If you do not see the selection you need in the drop -down options, please contact the WSU Energy Program at <br />energycode@energy.wsu.edu or (360) 956-2042 for assistance. <br />rrolect Information Contact Information <br />Cyprus DADU J Jones r <br />Heating System Type: O All Other Systems O Heat Pump <br />To see detailed instructions for each section, place your cursor on the word "Instructions" <br />Design Temperature <br />Instructions .. ."< w Design Temperature Difference (AT) 47 <br />Everett Ic pT =Indoor (70 degrees) -Outdoor Design Temp X <br />Area of Building A�� �A �� <br />Conditioned Floor Area <br />instructions O /^\�7 <br />Conditioned Floor Area (sq ft) g7 � <br />Average Ceiling Height Conditioned Volume <br />Instructions Average Ceiling Height (ft) 8,1' 6,927 `Q J <br />Glazing and Doors U-Factor X Area = UA <br />Instrurtions _ -. �� <br />u-o.zs .,,,�3 0.250 283� 70.75 <br />Skylights U-Factor X Area = UA <br />Instructions 0.50 --- <br />Insulation <br />Attic <br />Instructions <br />R-49 <br />Single Rafter or Joist Vaulted Ceilings <br />Instructions <br />R-49 Advanced <br />Above Grade Walls (see Figure 1) <br />Instructions •' - "" - -"�'"' <br />R-21 INT <br />Floors <br />Instructions <br />-' „""�'"" ^, _ ,.•.- <br />Below Grade Walls (see Figure 1) <br />Instructions <br />No Below Grade Walls in this project <br />a. <br />Slab Below Grade (see Figure 1) <br />Instructions <br />No Slab Below Grade in this project <br />` <br />Slab on Grade (see Figure 1) <br />Instructions <br />No Slab on Grade m this project. <br />Location of Ducts <br />Instructions <br />VCondrtioned <br />Space <br />� <br />Figure 1. <br />Above Grade.- <br />. •:asses°.. <br />U-Factor <br />X Area = <br />UA <br />0.026 <br />F 456 <br />11.86 <br />U-Factor <br />X Area <br />UA <br />0.020 <br />401 <br />8.02 <br />U-Factor <br />X Area <br />UA <br />0.043 <br />' 731 <br />31.43 <br />U-Factor <br />X Area <br />UA <br />0.025 <br />283 !-1 <br />7.08 <br />U-Factor <br />X Area <br />UA <br />0.028 <br />0 <br />F-Factor <br />X Length <br />UA <br />0.303 <br />--- <br />F-Factor <br />X Length <br />UA <br />Sum of UA <br />Duct Leakage Coefficient <br />1.00 <br />129.13 <br />Envelope Heat Load 6,069 Btu / Hour <br />Sum of UA x AT <br />Air Leakage Heat Load 3,516 Btu/Hour <br />Volume x 0.6 x AT x 0.018 <br />Building Design Heat Load 9,586 Btu / Hour <br />Air leakage + envelope heat loss <br />Building and Duct Heat Load 9,586 Btu / Hour <br />Ducts in unconditioned space: sum of buildinq heat loss x 1.10 <br />Ducts in conditioned space: sum of building heat loss x 1 <br />Maximum Heat Equipment Output 13,420 Btu / Hour <br />buildinq and duct heat loss x 1.40 for forced air furnace <br />buildinq and duct heat loss x 1.25 for heat pump <br />(07/01/13) <br />