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r <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 /> The Jerabek American Home Planners <br /> 3716 Upland Avenue,Everett WA 98203 Lauren Vital <br /> Tax ID# (425)760-5000 <br /> Heating System Type: ®Forced Air Furnace 0 Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions". <br /> Design Temperature <br /> I ns.ructions <br /> Design Temperature Difference(AD 47 <br /> Everett JC _J 1sT,-Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Conditioned Floor Area(sq ft) 2,535 <br /> Average Ceiling Height Conditioned Volume <br /> if sJor.ttons Average Ceiling Height(ft) 9.0 22,815 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions 0.30 430 129.00 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> Req 0.026 1,338 34.79 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor Area UA <br /> No Vaulted Ceilings In this project. " -- <br /> Above Grade Wails(see Figure 1) U-Factor Area UA <br /> R-21 �-- 0.056 2,682 150.19 <br /> --- - � �.. <br /> Floors U-Factor Area UA <br /> lus'ctioa0.029 1,270 36.83 <br /> [R-3o vi <br /> Below Grade Walls(see Figure 1) U-Factor Area UA <br /> No Below Grade Walls In thls project. V <br /> Slab Below Grade(see Figure 1,1 F-Factor Len th <br /> 1 UA <br /> !n t-uclkv;: <br /> � — --------- <br /> o Slab Below Grade in this project vi <br /> Slab on Grade(sea Figure 1) F-Factor Len UA <br /> No Slab on Grade in this project <br /> Location of Ducts <br /> lastruction. Duct Leakage Coefficient <br /> Conditioned Space 1.00 <br /> Sum of UA 350.81 <br /> Envelope Heat Load 16,488 Btu/Hour <br /> Figure 1. Sum ofl/AXAT <br /> -44111111111.1%,- Air Leakage Heat Load 11,581 Btu/Hour <br /> Volume 0.6XATX.016 <br /> Above Grade Building Design Heat Load 28,069 Btu I Hour <br /> Air Leakage+Envelope Heat Loss <br /> Building and Duct Heat Load 28,069 Btu/Hour <br /> Ducts In unconditioned space:Sum of Building Heal Loss X 1.10 <br /> Ducts in conditioned space:Sum or Building Heat Loss X1 <br /> Maximum Heat Equipment Output 39,297 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 /> (07/01/13) <br />