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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 Contact Information <br /> A&P Holdings Marie Anderson @ Nash&Asso Architects <br /> 79th Pl.NE,Granite Falls (425)242-7491 <br /> 04/13/2021. mdne'a N&-*-Ar-nrt r--^nm <br /> Heating Systen-I you. O Ail Other Systems Q Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"instructions" <br /> Design Temperature <br /> Instructions Marvsriue o Design Temperature Difference(AT) 47 <br /> AT=Indoor(70 degrees)-Outdoor Design Temp <br /> Are? of 5;:;I�I•, <br /> Conditioned Floor Area <br /> intitruc::ons 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 /> u-o'e 0.280 315 88-14 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 <br /> Insulation <br /> Attie U-Factor X Area = UA <br /> Instructions R a9 _ _ 0.026 926 24.08 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> Instructions Rio AdvaKed 0.020 216 4.32 <br /> Above Grade Walls(swiTwSmi) U-Factor X Area UA <br /> Inst"`� R-21 Intermediate 0.056 1.934 108.32 <br /> Floors U-Factor X Area UA <br /> Inst-ctio <br /> R-3s � � 0.025 1,142 28.55 <br /> Below Grade Walls(see Flgurn1) U-Factor X Area UA <br /> Irtstfuctro— <br /> Select P.-value No selection --- <br /> Slab Below Grade(seeFtoum1) F-Factor X Len UA <br /> Instructions <br /> Select conditioning w NO Selection -- <br /> Slab on Grade(soo Fioum n F-Factor X Length UA <br /> Instructions I� I <br /> �LL select R-value � No selection --- <br /> k:- 3HNIEN _ <br /> Location of Ducts <br /> Instructions unconditioned Space Duct Leakage Coefficient <br /> - 1.10 <br /> Sum of UA 253.41 <br /> Envelope Heat Load 11,910 Btu/Hour <br /> Figure 1- Sum of UA x AT <br /> Air Leakage Heat Load 7,463 Btu/Hour <br /> Volume x 0.6 x AT x 0.018 <br /> Above Grade Building Design Heat Load 19.373 Btu/Hour <br /> Air leakage+envelope heat loss <br /> Building and Duct Heat Load 21,310 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 26,638 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 /> (07101113) <br />