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Sir es F#eat1ng s€em'Size:Washington.State <br /> This heating system sizing calculator is based on the Prescripfrve 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 toyour 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 /> Mcmains Family Addition Gonzales;Design partners <br /> 240 Heather Road f'07:0x <br /> .Bo#i 97 <br /> Everett,Washington Arlington,Washington 98223 <br /> Heating System Type: UU Cther Systems OHS PlunP <br /> To see detailed instructions for each section,place your cursor on the word Instructions". <br /> Design Temperature <br /> Instructions r-;rix - Design Tem attire Difference(AT) 47 <br /> AT=indoor go degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Instructions Conditioned Floor Area(sq ft) , 600I <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) I 9.0 5,400 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions <br /> 0.30 70 20.88 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 — <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> Instructions R-38 Advanced 0.026 600 15.60 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> Instructions select R-V i No Selection ` -- <br /> Above Grade Walls(seer/Ai/eV U-Factor X Area UA <br /> Instructionsr — --- —`-- - — 0.056 }, 666 37.30 <br /> R 2#intermediate v <br /> Floors U-Factor X Area UA <br /> Instructions 38 -- —-____ _.__— ---- P,f 0.025 } 600 15.00 <br /> Below Grade Walls(see Figwe1) U-Factor X Area UA <br /> Instructions Select Ft-value ► No seledton <br /> Slab Below Grade(seeFigure.1) F-Factor X LenUA <br /> Instructions Serest conditioning�—-- No selection <br /> Slab on Grade(see/Souse!) F-Factor XLength UA <br /> Instructions No Seecion -_ <br /> SektitRlfalue R� lt <br /> � <br /> Location of Ducts <br /> Instructions Duct Leakage Coefficient <br /> Unconditioned Space V <br /> 1.10 <br /> Sum of UA 88.78 <br /> Envelope Heat Load 4,172 Btu/Hour <br /> Figure 1. SUM ofUAXAT <br /> Air Leakage Heat Load 2,741 Btu/Hour <br /> VolumeX 0-6XATX.018 <br /> Above Grade. Building Design Heat.Load 6,914 Btu/Hour <br /> Air Leakage+Envelope Heat Loss <br /> Building and Duct Heat Load 7,605 Btu/Hour <br /> Ducts inunconditioned space:SumofSnadingHeatLosssX1.10 <br /> Ducts in conditioned space:Sum of Budding Heat Loss X 1 <br /> Maximum Heat Equipment Output 10,647 Btu I Hour _J C <br /> Hud{Sng and Dttct Heat Loss x 1.40 for Forced Air Furnace <br /> Bolting and Duct Heat Loss X1.25 for Heat Pump <br /> (07/01/13) <br />