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Simple Heating System Size: Washington State <br /> This heatinq svstem sizinq calculator is based on the Prescriptive Requirements of the 2012 Washinqton State EnerqV Code(WSEC)and ACCA <br /> Manuals J and S This calculator will calculate heatinq loads onlv.ACCA procedures for sizinq coolinq svstems should be used to determine coolinq <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 specifed bythe 2012 WSEC. <br /> Please fil 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 lnformation _ <br /> Unit E3 Townhome Polygon Northwest <br /> Eclipse Jamie Aubrey <br /> Everett,Washington (425)586-7700 <br /> Heating System Tvpe: �O Fo��ed a��F���a�e Q Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions". <br /> Desiqn Temperature <br /> i�,scr���c�o�,� _.. . __ _....._ . ___.._.. ..._.� a Design Temperature Difference(4T) 47 <br /> Everett 1C �T=Indoor(70 degrees)-Ou�door Design Temp <br /> � <br /> Area of Buildinq <br /> Conditioned Floor Area <br /> instr���no�,s Conditioned Floor Area(sq ft) 1,560 <br /> Average Ceiling Height Conditioned Volume <br /> mscruccions Average Ceiling Height(ft) 8.5 13,260 <br /> Glazinq and Doors U-Factor X Area = UA <br /> Instruc4fons 0.30 241 72.27 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> InsVuctions .....__. .___.... _..... ___. <br /> R-ay _ _J � 0.026 688 17.89 <br /> — a <br /> Single Rafter or Joist Vaulted Ceilings U-Factor Area UA <br /> Instructions ....._. .__.._ ...._- . ,_ _�..�.,.� � <br /> fNo Vaulted Ceilings in this pro�ect �� --- <br /> Above G�ade Walls(see Figure�) U-Factor Area UA <br /> Instructions .___. .._.___.. _-�__ _ .___..-. ._. . � <br /> R-zi �---y-- .� � 0.056 1,801 100.86 <br /> E — <br /> Floors U-Factor Area UA <br /> Instructions - -- -- +� 0.029 430 12.47 <br /> � I R-30 � <br /> l _..... --.�....� — <br /> Below Grade Walls(see Fiy�re�) U-Factor Area UA <br /> Instru�tions --� � ---�- -�---:— "�" � <br /> � No Below Grade Walls in this ro�ect �.�I� <br /> ___ ..__..__ P <br /> .�eetii+a-o�a <br /> Slab Below Grade(see F�gure 1) F-Factor Length UA <br /> Instructions ._... ..___ .__... ..._..�. „_.._�� � <br /> � No Slab Below Grade in this pro�ect � <br /> Slab on Grade�5ee Fry�re�� F-Factor Length UA <br /> Instructim,s .. � . .. .... ::._......_,. . - <br /> i �R-�o venmeter 0.540 75 40.50 <br /> � _-- -- ..:.�—�r�;� <br /> Location of Ducts <br /> i�,s�ruccio�,s _.. _ _ ._ Duct Leakage Coefficient <br /> � �Conditioned Spa�e _ .�,Y� <br /> � — — _ 1.00 <br /> Sum of UA 243.98 <br /> Envelope Heat Load 11,467 Btu/Hour <br /> Flgure 1. SumofUAX4T <br /> Air Leakage Heat Load 6,731 Btu/Hour <br /> VolumeX O.6XdTX.018 <br /> Above Grade Building Design Heat Load 18,198 Btu/Hour <br /> S- Air Leakage+Envelope Heat�oss <br /> - �� Building and Duct Heat Load 18,198 Btu/Hour <br /> Ducts in�nconditioned space:Sum of Building Heat Loss X 1.10 <br /> Ducts in conditroned space:Sum o/Building Heat Loss X 1 <br /> Maximum Heat Equipment Output 25,477 Btu/Hour <br /> Building and Duct Heat Loss X 1.40 fo�Forced Air Fumace <br /> Building and Ducf Heat Coss X 1.25/or Heal Pump <br /> (07/01/13J ..� <br /> 7 <br />