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Simple Heating System Size:Washington State <br /> This healing 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 ContactInformation <br /> A&P Holdings IMarle Anderson®Nash&Asso Architects <br /> 79th Pl,NE,Granite Falls (425)242-7491 <br /> 04/13 2021. n1adelZNash•Archite0S,cerl1 <br /> Heating System Type: O All other systems O Hut Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions' <br /> Design Temperature <br /> in5i"rcu°ns _ Design Temperature Difference(AT) 47 <br /> Ma'15vJk AT=Indoor(70 degrees).Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Conditioned Floor Area(sq ft) 1,744 <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) 8.4 14,702 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions <br /> j u-0.28 0 280 315 88.14 <br /> Skylights U-Factor X Area UA <br /> Instructions 0.50 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> h,slnrctio,ns R-49 0.026 928 24.08 <br /> � I <br /> Single Rafter or Joist Vaulted Ceilings 1 U-Factor X Area UA <br /> I'' ' ,1,— jK.19, 0.020 F 216 4.32 <br /> Above Grade Walls tswFigure i1 U-Factor X Area UA <br /> i" h-Ii„ R-211ntermediate . I 0.056 1,834 108.32 <br /> ( J <br /> Floors U-Factor X Area UA <br /> 0.025 1,142 28.55 <br /> i R-38 <br /> Below Grade Wallis isooFiguro n J U-Factor X Area UA <br /> Ire.l, �t�-•ii. <br /> i ,Select R-value . NO 5@IBCGOn --- <br /> Slab Below Grade iseeFioure a F-Factor X Lail It UA <br /> ho-4....'I"o", I No selection f�J <br /> l Select ccxrditionirg -•- <br /> Slab on Grade(sooFioure it F-Factor X Lonnth UA <br /> No selection t�"-�J <br /> Select R•Va'ue . "- <br /> Location of Ducts <br /> Instructions Duct Leakage Coefficient <br /> LUnconditbned Space • <br /> 1.10 <br /> Sum of UA 253.41 <br /> Envelope Heat Load 11,910 Btu/Hour <br /> Route 1. Sum o/UA x AT <br /> Air Leakage Heat Load 7,463 Btu/Hour <br /> Volumex 0.6xATx0.018 <br /> AEoNer+ee Building Design Heat Load 19,373 Btu/Hour <br /> Air leakage+envelope heat loss <br /> Building and Duct Heat Load 21,310 Blu/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 26,638 Btu/Hour <br /> Building and duct heat loss x 1.40 for forced air furnace <br /> Building and duct heat loss x 1.25 for heat pump <br />