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1 <br /> Simple Heating System Size: Washir ton State <br /> 4111 <br /> This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code(WSEC)and ACCA <br /> Manuals 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 /> WALLACE BASEMENT REMODEL SPENCER WALLACE <br /> All Other Systems •Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions" <br /> Design Temperature <br /> Instructions Design Temperature Difference(AT) 49 <br /> Everett Paine APB wAT=Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> ._•..,..- Conditioned Floor Area(sq ft) 836 <br /> Average Ceiling Height Conditioned Volume <br /> Instruct Average Ceiling Height(ft) 7.0 5,852 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions w- -w—.. - .. 3 -- <br /> himtiii v. , 0.280 72 20.16 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 0 --- <br /> Insulation <br /> Attio U-Factor X Area = UA <br /> Instructions No selection 0 <br /> ..._,_.� .'glue ♦ -- <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> strut' No Vaulted Ceilings in this project N. --- 0 <br /> Above Grade Walls(see Figure i) U-Factor X Area UA <br /> Instructions " "' No selection 124 <br /> Select R-Value - - w <br /> Floors U-Factor X Area UA <br /> nG — 0 <br /> No Floors above unconditioned spaces. 1► y( -_ <br /> Below Grade Walls(see Figure 1) U-Factor X Area UA <br /> •nstructioos a zt lnteriw_ 0.042 493 20.71 <br /> Slab Below Grade(see Figure.0 F-Factor X Len,th UA <br /> ti-5 Thermal Break at slab edge w 0.570 101 57.57 <br /> iiii <br /> Slab on Grade(see Figure 1) F-Factor X Len•th UA <br /> , S 1D Fully Insulated v A 0.360 3 1.08 <br /> Location of Ducts <br /> Instructions a .. », 3 Duct Leakage Coefficient <br /> Conditioned Space v <br /> 1.00 <br /> Sum of UA 99.52 <br /> Envelope Heat Load 4,876 Btu/Hour <br /> Figure 1. Sum of UA x AT <br /> Air Leakage Heat Load 3,097 Btu/Hour <br /> Volume x 0.6 x AT x 0.018 <br /> Above Grade Building Design Heat Load 7,973 Btu/Hour <br /> "° ,_ Air leakage+envelope heat loss <br /> Below Grade - '- <br /> Building and Duct Heat Load 7,973 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 9,966 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 /> (07/01/13) <br />