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• <br /> 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 /> Sidhu Properties-Trip;ex Residence American Home Planners <br /> Unit A (425)258-6400 <br /> Heating System Type: O All Other Systems 0 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 /> Everett K .i AT,-Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> " t"�•:.iicr. Conditioned Floor Area(sq ft) - 1,263 <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) 8.0 10,104 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions <br /> 0.30 114 34.20 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 <br /> - - - Insulation <br /> Attic U-Factor X Area = UA <br /> trr.'?ructi:c's R49 0.026 1,263 32.84 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> Instructions I No Vaulted Ceilings in this project. --' <br /> Above Grade Walls(see Figure I) U-Factor X Area UA <br /> Instructions I R-2t intermediate V� 0.056 1,360 76.16 <br /> Floors - U-Factor X Area UA <br /> Instructions ----- -- -- <br /> No Floors above unconditioned spaces. • <br /> Below Grade Walls(sear/v.1) U-Factor X Area UA <br /> Instructions — <br /> No Below Grade Walls In this project. v --- --- <br /> Slab Below Grade(see Figure 1) F-Factor X Len I UA <br /> Instructions — ---- ----- —--No Slab Below Grade In this project. v I --- <br /> Slab on Grade(see Figure v F-Factor X Len•th UA <br /> Instructions Rd0 Perimeter V 0.540 156 84,24 <br /> Location of Ducts <br /> Instructions Duct Leakage Coefficient <br /> No Ducts v <br /> — 1.00 <br /> Sum of UA 227.44 <br /> Envelope Heat Load 10,690 Btu I Hour <br /> Figure 1. Sum of UA X AT <br /> ...1111111.11111... <br /> ` Air Leakage Heat Load 5,129 Btu/Hour <br /> VolumeX 0.6X ATX.018 <br /> Above Grade Building Design Heat Load 15,818 Btu/Hour <br /> Air Leakage+Envelope Heat Loss <br /> Building and Duct Heat Load 15,818 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 22,146 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 ( t/yy <br /> (07/0.03) <br />