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V � ptcx, 1d �',Z,�I � � <br />, Simple Heating System Size: Washington State � <br />This heatinq svstem sizinp calculator is based on the Prescriptive Requirements of the 2012 Washinaton State Enerav Code (WSEC) and ACCA <br />Manuals J and S. This calculator will calculate heatinq loads onlv. ACCA procedures for sizinp 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 specified by the 2012 WSEC. <br />Please fill out all of the green drop-downs and boxes that are applicabie 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 lnformation Confacf lnformafion <br />Unit El Townhome Polygon Northwest <br />Siiver LakeTownhomes Alaina Robertson <br />Everett, Washin on (425) 605-0005 <br />Heati nq System Tvpe: O Fo��ed A�r FU��a=e Q Heat Pump <br />To see detailed instructions for each section, place your cursor on the word "Instructions': <br />Desiqn Temperature <br />"'��� �'���'Oi3; � � � � � � � � � Design Temperature Difference (4T) <br />,_____ -- -____� _ - <br />� Everett JC <br />� �� � OT = Indwi (70 degrees) - Outdoor Design Temp <br />E - - ������,:; <br />Area of Buildinq <br />Conditioned Floor Area <br />`' ��'`'��'�"=� Conditioned FloorArea (sq ft) <br />Average Ceiling Height <br />�"-`�'"�i1°"� Average Ceiling Heighi (ft) <br />Glazinq and Doors <br />ItiSPYIlC11O!15 <br />Insulation <br />Attic <br />_ _ <br />fnatr�.etian_ i <br />____ ____^ w_ _---- ------ ---.__ <br />� ..���.. R-44 � . t <br />6.:�+: "a,'', :� <br />Single Rafter or Joist Vaulted Ceilings <br />Ir:s�ruetions p _ -� `-..� -""- � � <br />�auited Cellings In this proJect. <br />a.asi, <br />Above Grade Waus �are F�s�re �� <br />:nsVuctions - ---= - -'__--.._ ��.--- - — <br />' R'�...........�i�.......-� .. . . . . '' -� <br />Floors <br />_ ___ _.___. _ <br />ifl�iTfUC110315 ��� .'—'___'�'._"_'___'_^..__"' �..:t-:.� <br />R-30 � ` <br />�,.:_ _ - -, �,�rairm�ri — <br />Below Grade Walls �:eo F�g�re y� <br />_ _ _ _ _. _. _ <br />tnsiructicr.s .__.__. __ __....__.. _-.___..__._._ _-.____..__. .� � <br />��o Bebw Grdde Wdlls m thl5 pro�Kt. �` <br />;:,- .;::�.. �. _.,. <br />Slab Below Grade rsee F�a�re vi <br />krjs;nicticns -- ---- --- — <br />� No Slab Below Grade in this pro�eQ. � <br />� �� <br />Slab on Grade �see F�a�re �i <br />4nsiructicns -_ .._--- -.__._. _ �� . _._� <br />R-i0 PenmeCer � � �. � <br />� <br />�m <br />Location of Ducts <br />.rure;or,s _ __. <br />E Condinoned Space �� � �► � <br />�''' �� ." � � -�'r,� <br />Fi ure 1. <br />,.�`''°� r <br />��— '^�, <br />Above Grada <br />t. - <br />_ k �e.��, <br />,, - GYade " - - <br />1,368 <br />Conditioned Volume <br />8.5 11,628 <br />U-Factor X Area = UA <br />0.30 1$1 54.42 <br />U-Factor X Area = UA <br />0.026 ' 602 15.65 <br />U-Factor <br />U-Factor <br />0.056 <br />U-Factor <br />0.029 <br />U-Factor <br />F-Factor <br />F-Factor <br />0.540 <br />Sum of UA <br />Area <br />� <br />Area <br />413 <br />Area <br />345 <br />Area <br />0 <br />LeL—J <br />Len th <br />66 <br />Duct Leakage Coefficient <br />1.00 <br />UA <br />UA <br />23.13 <br />UA <br />10.01 <br />UA <br />UA <br />UA <br />35.64 <br />138.85 <br />47 <br />Envelope Heat Load 6,526 Btu / Hour <br />Sum ot UA X 4T <br />Air Leakage Heat Load 5,902 Btu / Hour <br />Vo/umeX o.sXeTX.o18 <br />Building Design Heat Load 12,428 Btu / Hour <br />Air Leakage + Envelope Heat Loss <br />Building and Duct Heat Load 12,428 Btu / Hour <br />Ducts In unconditioned space: Sum of Bullding Heat Loss X 1.10 <br />Ducfs in conditioned space: Sum of 8uilding Heat Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Building and Duct Heal Loss X i.40 /or Forced Air Furnace <br />Building and Duct Heat Loss X 1.25 !or Heat Pump <br />�(07/01/13) <br />