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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 /> Project Information Contact Information <br /> ZEWDU FASHIE eMD Design Pracitce <br /> 1202 CASINO RD.EVERETT,WA 98203 ermias@emddesignpractice.com <br /> Heating System Type: 0 All Other Systems 0 Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions" <br /> Design Temperature <br /> lnstr"`lions Everett Paine AFB Design Temperature Difference(AT) 49 <br /> AT=Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Conditioned Floor Area(sq ft) 663 <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) 7.0 4,641 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions -- -" - <br /> u-0.2a 0.280 166 46.48 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 0 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> R-ae 0.026 613 15.94 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> 10 Select R-Value <br /> No selection 0 <br /> � <br /> Above Grade Walls(see Figure 1) U-Factor X Area UA <br /> R llntermediate 0.056 641 35.90 <br /> Floors U-Factor X Area UA <br /> R.36 0.025 663 16.58 <br /> Below Grade Walls(see Figure 1) U-Factor X Area UA <br /> Select R-value No selection 0 --- <br /> Slab Below Grade(see Figure 1) F-Factor X Length UA <br /> No Slab Below Grade in this project. 0.000 0 --- <br /> Slab on Grade(see Figure 1) F-Factor X Length UA <br /> lipSelect R-value . No selection 0 <br /> Location of Ducts <br /> `Stt,It Duct Leakage Coefficient <br /> Conditioned Space V <br /> 1.00 <br /> Sum of UA 114.89 <br /> Envelope Heat Load 5,630 Btu/Hour <br /> Figure 1. Sum of UA x AT <br /> Air Leakage Heat Load 2,456 Btu/Hour <br /> Volume x 0.6 x AT x 0.018 <br /> Above Grade Building Design Heat Load 8,086 Btu/Hour <br /> Air leakage+envelope heat loss <br /> Building and Duct Heat Load 8,086 Btu/Hour <br /> Ducts in unconditioned space:sum of building heat loss x 1.10 <br /> Ducts in conditioned space:sum of building heat loss x 1 <br /> Maximum Heat Equipment Output 10,107 Btu/Hour <br /> Building and duct heat loss x 1.40 for forced air furnace j I <br /> Building and duct heat loss x 1.25 for heat pump <br /> (07/01/13) <br />