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Simple Heating System Size: Washington State <br /> This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 Washington State Energy Code(WSEC)and ACCA <br /> Manuals J and S.This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to determine cooling <br /> loads. <br /> The glazing(window)and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of <br /> 0.30. The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2015 WSEC. <br /> Please fill out all of the green drop-downs and boxes that are applicable to your project.As you make selections in the drop-downs for each section, <br /> some values will be calculated for you.If you do not see the selection you need in the drop-down options,please call the WSU Energy Extension <br /> Program at(360)956-2042 for assistance. <br /> Project Information Contact Information <br /> Hlamazda Residence.House adition Tatyana Shadyrya <br /> 9105 10th PL W 22420 6th PI W,Bothel,WA <br /> Everett,WA 98204 Archstudio"Y.Shadyrya" <br /> Heating System Type: ®NI Other Systems °Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions". <br /> Design Temperature <br /> Design Temperature Difference(AT) 47 <br /> Everett JC V <br /> AT=Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Conditioned Floor Area(sq ft) 2,553 <br /> Average Ceiling Height Conditioned Volume <br /> Average Ceiling Height(ft) 8.0 20,424 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions <br /> 0.30 355 106.50 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 0 -- <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> R-49 . 0.026 1,412 36.71 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> I No Vaulted Ceilings in this protect. V i 847 <br /> Above Grade Walls(see Figure 1) U-Factor X Area UA <br /> `ct`'r" R-zt Intermediate ;' 0.056 2,512 140.67 <br /> Floors U-Factor X Area UA <br /> R-30 v ( 0.029 500 14.50 <br /> Below Grade Walls(see Figure 1) U-Factor X Area UA <br /> R 21 Interior j 0.042 96 4.03 <br /> Slab Below Grade(see Figure 1) J F-Factor X Length UA <br /> No Slab Below Grade in this project. 72 <br /> Slab on Grade(see Figure d) F-Factor X Len•th UA <br /> Instructions No Slab on Grade in this project. v{ 70 <br /> Location of Ducts <br /> n,•;u.;:ai>,: ---_.--------_-____..-_-...} Duct Leakage Coefficient <br /> unconditioned Space V <br /> 1.10 <br /> Sum of UA 302.42 <br /> Envelope Heat Load 14,214 Btu/Hour <br /> Figure 1. Sum ofUAXAT <br /> Air Leakage Heat Load 10,367 Btu/Hour <br /> VolumeX O.6XATX.018 <br /> Above Grade Building Design Heat Load 24,581 Btu/Hour <br /> Air Leakage+Envelope Heat Loss <br /> Building and Duct Heat Load 27,039 Btu/Hour <br /> Duds 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 37,854 Btu/Hour <br /> Building and Duct Heat Loss X 1.40 for Forced Air Furnace l.1 <br /> Building and Duct Heat Loss X 1.25 for Heat Pump <br /> I j <br /> (07/01/13) <br />