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<br /> /dimple 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 /> 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 /> SHORE AVENUE LOT 2 HAYWARD HOMES LLC
<br /> Heating System Type: 4,Al 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) 47
<br /> Ev`. _.II' sT=Indoor(70 degrees)-Outdoor Design Temp
<br /> Area of Building
<br /> Conditioned Floor Area
<br /> Instructions Conditioned Floor Area(sq ft) 3,026
<br /> Average Ceiling Height Conditioned Volume
<br /> Instructions Average Ceiling Height(ft) 9.4 28,444
<br /> Glazing and Doors U-Factor X Area = UA
<br /> Instructions
<br /> II n Sri V 0.300 463 138.90
<br /> Skylights U-Factor X Area = UA
<br /> Instructions 0.50 0 ---
<br /> Insulation
<br /> Attic U-Factor X Area = UA
<br /> Instructions 11.49 0.026 1,871 48.65
<br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA
<br /> Instructions 0
<br /> No V,tl,it,�r1(.e ,,,1, ,;vvi thy.rr,,I,t v
<br /> Above Grade Walls(see Figure 1) U-Factor X Area UA
<br /> Instructions u t tY u i�I 0.056 2,478 138.77
<br /> Floors U-Factor X Area UA
<br /> Instructions --- 1,875
<br /> Below Grade Walls(see Figure 1) U-Factor X Area UA
<br /> Instructions 0.028 0
<br /> N -,,,Belnw Grade Walls in this pro, t V --
<br /> Slab Below Grade(see Figure 1) F-Factor X Len•th UA
<br /> Instructions 0.303 0
<br /> N r,',I,al,B,1,,t,,,,,,d,,,,tlt,e.pinlnrt V
<br /> Slab on Grade(see Figure 1) F-Factor X Len•th UA
<br /> Instructions 0
<br /> No Sl,,l,or,Gi,,,it,,,,II,,.I'irr,t V
<br /> Location of Ducts
<br /> Instructions Duct Leakage Coefficient
<br /> ,,,,a,,,,,,,.1 v.,t, V 1.00
<br /> Sum of UA 326.31
<br /> Envelope Heat Load 15,337 Btu/Hour
<br /> Figure 1. Sum ofUAXAT
<br /> Air Leakage Heat Load 14,438 Btu/Hour
<br /> VolumeX 0.6XATX.018
<br /> Above Grade Building Design Heat Load 29,775 Btu/Hour
<br /> Air Leakage+Envelope Heat Loss
<br /> Building and Duct Heat Load 29,775 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 41,685 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 /> (13L-D.3.--- (07/01/13)
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