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. 5� p1��, b1d �� q � 3 <br />Sim le Heatin S stem Size: Washin ton State � � /�� <br />p 9 Y 9 <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 instailed 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 wiil 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 lnformation Contact lnformafion <br />Unit El Townhome Polygon Northwest <br />Silver LakeTownhomes Alaina Robertson <br />Everett, Washin ton (425} 606-0005 <br />H28tlilq SyStelll TVp@: O Forced Air Furnace Q Heat Pump <br />To see detarled rnstructions for each section, place your cursor on the word "Instructions". <br />Desiqn Temperature <br />his�rucfions _ <br />Everett )C �� �� ��� u � � Design Temperature Difference (4T) <br />F -� �T =lndaor (70 deg�ees) - Oufdoor Design Temp <br />_�-.��...�Y <br />Area of Buildinq <br />Conditioned Floor Area <br />���se��jc�iw,5 Conditioned FloorArea (sq ft) <br />Average Ceiling Height <br />�n5tructior,> Average Ceiling Height (ft) <br />Glazinp and Doors <br />Instri:ctions <br />Insulation <br />Attic <br />Instrtsctions -- -- ----------� <br />� R 49 � ,.,; . <br />i ��.. :��� <br />Single Rafter or Joist Vaulted Ceilings � <br />_____ _--.. <br />9nstntcPict�c i - - - — -- j <br />�No vaulted Cel�ings In this proJett � J <br />..'. . _�: <br />Above Grade WaUs �Sre Fie�re f� <br />��,5<<���,�t,s -------- l <br />� , R-21 � < <br />� �� <br />Floors <br />Instru�tion, �-- � <br />� ; R-30 � <br />r .,,u. . _ <br />Below Grade Walls �sKFre�re» <br />-_ _.. _ _ --_.___ <br />_ ,_ __._ <br />fnsfru�.#io�ts __ __._.._�._�_�___._ <br />No Oelaw Grade Walls in lhls pro�ect. � E': <br />a rh� <br />Slab Below Grade rs� F�c��e ai <br />__ ..._ __ <br />Enstructions � ___ ___ �_— --- � <br />No Slab 6elow Grade in lhis projec[ �` <br />Slab on Grade �se� Fia�re n <br />Ins[ructions � - _ __ _._-'--- —"-.,-- —__.-,-----, i <br />� R-10 Penmeter � �� <br />� <br />_ _ . <br />l . ,��w ; _;. ,r <br />Location of Ducts <br />1175'f111rt10715 .....__ ._...� .... . �, '_ ..... <br />Conditioned Space �� <br />��.ia..::uaK>;�..l.,e.'�•�::�.Sr.wkL�Jf't • - <br />Ffqure 1. <br />,.�•>_ <br />� ,R,,. ,,,,:� <br />_ — .a <br />Above Grade � <br />� *c�:�>3 y;;ae ,: _ _ , <br />1,368 <br />Conditioned Volume <br />8.5 11,628 <br />U-Factor X Area = UA <br />0.30 181 54.42 <br />U-Factor X Area = UA <br />0.026 602 15.65 <br />U-Factor Area <br />-- � <br />U-Factor Area <br />0.056 413 <br />U-Factor Area <br />0.029 345 <br />U-Factor Area <br />_' � <br />F-Factor Le� <br />UA <br />UA <br />23.13 <br />UA <br />10.01 <br />UA <br />UA <br />F-Factor Len th UA <br />0.540 66 35.64 <br />Duct Leakage Coefficient <br />1.00 <br />Sum of UA <br />138.85 <br />47 <br />Envelope Heat Load 6,526 Btu ! Hour <br />Sum oI UA X �T <br />Air Leakage Heat Load 5,902 Btu / Hour <br />VolumeX O.6X�TX.018 <br />Building Design Heat Load 12,428 Btu / Hour <br />Air Leakage + Envebpe Heat Loss <br />Building and Duct Heat Load 12,428 Btu / Hour <br />Ducts in unconditioned space: Sum of Building Heat Loss X 1.10 <br />Ducfs in conditioned space: Sum of Building Heai Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Buildfng and Ducf Heat Loss X 7.40 /or Forced Air Furnace <br />Building and Duct Heat Loss X 1.25 !or Heaf Pump � <br />(07/01/13J <br />