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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 <br /> ACCA Manuals J and S.This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to <br /> determine cooling loads. <br /> The glazing(window)and door portion of this calculator assumes the installed glazing and door products have an area weighted average U- <br /> factor of 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 <br /> section,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 <br /> Energy Extension Program at(360)956-2042 for assistance. <br /> Project Information Contact Information <br /> Caroline&Jeff Mason Flat Rock Productions <br /> 1020 North Park Drive PO Box 1087 Langley,WA98260 <br /> Everett,WA 360.221.4122 eflat@flatrockproductions <br /> Heatina System Type: •All other systems Q 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 AFB ST=indoor(70 degrees)-Outdoor Deng,Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Conditioned Fbor Area(sq ft) 256 <br /> Average Ceiling Height Conditioned Volume <br /> Average Ceiling Height(ft) l 8.5 2,176 <br /> Glazina and Doors U-Factor X Area = UA <br /> 0.30 11 3.15 <br /> Skvliahts U-Factor X Area _ = UA <br /> 0.50 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> R-38 Advanced 0.026 256 6.66 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> R-38 Vented Hi 0.027 <br /> Above Grade Walls(see Figure 1) U-Factor X Area _ UA <br /> R-21 Intermediate ul 0.056 64 3.58 <br /> Floors U-Factor X Area UA <br /> R-3 0 [J 0.029 <br /> Below Grade Walls(see Figure1) U-Factor X Area UA <br /> No Below Grade Walls in tH <br /> Slab Below Grade(see Figure1) F-Factor X Length UA <br /> No Slab Below Grade in thEl Il l <br /> Slab on Grade(seeFigurel) F-Factor X Len•th UA <br /> Instructions oi R-10 Fully Insulated �,, 0.360 80 28.80 <br /> Location of Ducts �� <br /> Duct Leakage Coefficient <br /> No Ducts - Lao <br /> Sum of UA 42.19 <br /> Envelope Heat Load 2,067 Btu/Hour <br /> Figure 1. Sum dUAXAT <br /> Air Leakage Heat Load 1,152 Btu/Hour <br /> VolumeX 0.6XAT X.018 <br /> Above , Building Design Heat Load 3,219 Btu/Hour <br /> '4067 .,7-r7 i Air Leakage+Envelope Heat Loss <br /> Betow rife" <br /> Building and Duct Heat Load 3,219 Btu/Hour <br /> Ducts in tncmdtimed space:Sum of&ilof g Heat Loss X 1.10 <br /> Ducts in cadtioned space.Sum ofBullnfng Heat Lass X <br /> Maximum Heat Equipment Output 4,506 Btu/Hour <br /> Builcfng and Duct Heat Loss X 1.40 for Forced Air Furnace <br /> Billing and Duct Heat Loss X 1.25 for Heat Pump <br /> (07/01/13) <br />