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• <br /> i <br /> Simple Heating System Size: Washington State <br /> (This heating system sizing calculator is based on the Prescriptive Requirements of the 2012 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 2012 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 /> BURNS ADDITION RANDALL BURNS <br /> 929 HOYT 929 HOYT <br /> EVERETT 98201 EVERETT WA 98201 <br /> Heating System Type: *All Other Systems O 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 IC - AT=Indoor(70 degrees).Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Instructions Conditioned Floor Area(sq ft) 1,985 <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) 8.0 15,880 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions <br /> 0.30 500 149.91 <br /> Skylights U-Factor X Area = UA <br /> Instructions 0.50 327 163.25 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> R-19 .J 0.026 1,716 44.61 <br /> _.J <br /> Single <br /> Joist Vaulted Ceilings _ U-Factor X Area UA <br /> Rafter orselect R-value No selection --- <br /> Above Grade Walls(see Figure 1) U-Factor X Area UA <br /> R-21Intermediate , 0.056 1,031 I 57.74 <br /> Floors U-Factor X Area UA <br /> R-30 v 0.029 1,716 49.76 <br /> Below Grade Walls(see Figure I) U-Factor X Area UA <br /> Instruction>. V No selection <br /> Select R-value <br /> ---44011111111k- <br /> Slab Below Grade(see Figr,re 1) F-Factor X Length UA <br /> Select conditioning <br /> No selection <br /> Slab on Grade(see Figure 1) F-Factor X Len <br /> UA <br /> select R-value v' <br /> No selection <br /> Location of Ducts <br /> Instructions Duct Leakage Coefficient <br /> Unconditioned Space V <br /> 1.10 <br /> Sum of UA 465.27 <br /> Envelope Heat Load 21,868 Btu/Hour <br /> Figure 1. Sum ofUAXAT <br /> Air Leakage Heat Load 8,061 Btu/Hour <br /> _ VolumeX 0.6 XATX.018 <br /> Above G,adc Building Design Heat Load 29,928 Btu/Hour <br /> ""•"�= Air Leakage+Envelope Heat Loss <br /> [Mow Grade "'""- .$ <br /> Building and Duct Heat Load 32,921 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 46,090 Btu/Hour <br /> Building and Duct Heat Loss X 1.90 for Forced Air Furnace <br /> Building and Duct Heat Loss X 1.25 for Heat Pump <br /> (07/01/1 <br />