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. V ` p`tx, b,d � ', z.'i � � � <br />Simple Heating System Size: Washington State � <br />This heatinq system sizinq calculator is based on the Prescriptive Requirements of the 2012 Washinqton State EneraV Code (WSEC) and ACCA <br />Manuals J and S. This calculator will calculate heatinq loads onlv. ACCA procedures for sizinq coolin4 svstems should be used to determine coolinc7_ <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 yow need in the drop-down options, please call the WSU Energy Extension <br />Program at (360) 956-2042 for assistance. <br />Projecf Information Contact Information <br />Unit El Townhome Polygon Northwest <br />Silver Lake Townhomes Alaina Robertson <br />Everett, Washington (425) 606-0005 <br />Heating System Type: O Fo��ed w� F���a�e Q Heat Pump <br />To see detailed instrucfions for each section, place your cursor on tne word "lnstrucfions". <br />Desiqn Temperature <br />ir;st,c?�t�on> ,..:,� w....�._..._._� . . - - ___._._.._ Design Temperature Difference (4T) <br />�; Everett JC � 4� ��� �T =lndoor (70 degrees) - Outdoor Design Temp <br />� . - - -v��:.:� <br />Area of Buiidinq <br />Conditioned Floor Area <br />i"=2' �'c�'°„ti Conditioned Floor Area (sq ft) <br />Average Ceiling Height <br />�"��r"�i1Ot� Average Ceiling Height (ft) <br />Glazinq and Doors <br />Ins?ructions <br />Insulation <br />Attic <br />_.: _ ___-___ - — <br />Ir�structtons R R-49 <br />� - :�-- _..: � � <br />Single Rafter or Joist Vaulted Ceilings <br />____ _ __ _---- <br />IlltiilSlCfIG715 1 -- .. -. - -P- ..�'- "—`.---- <br />� No 4aulted Cel�m95 In this roJett �� <br />.a�,�tm� �...�Y:�.=:•.,�,,;a� '� ' <br />Above Grade Waus �sre F�yu.� �� <br />in>iruciiosis i __ _... - -- ----- <br />� R_�i � � �. <br />Floors <br />_ . __ ___ ___. <br />i;rstruciions --- <br />� R30 � � <br />Below Grade Walls �see Fr9�re �) <br />- - — _....— --- - __-- <br />Insiruciic3is ___ � _._..__ _ <br />� No peloiv Grade Walls m lhls pro�ect. ���� <br />e�- e��, <br />Slab Below Grade rsee Fra�re 1� <br />___. ___ <br />io:s'ruciions -- _ ------ . _._ M I <br />� No Slab Oelow Grade fn thls projeR. � <br />. . --:' �.�-�' .. : i <br />Slab on Grade �bee F�c�re 1i <br />;�,��,���t,�;,� .�w _ ---_ - -_---J <br />( a-i0 Penmeter � <br />�, �,�. <br />Location of Ducts <br />iits�ructfons I . _;::; _ _._ <br />. dltioned Space � . _ I <br />� Con � . ,� <br />.�::�:..� <br />Fiqure 1. <br />-�.'"� ,�..�:.., <br />Above Grsde � <br />. _. __. <br />�?�. _ .__. <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 <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 />� <br />Le� <br />Len th <br />66 <br />UA <br />UA <br />23.13 <br />UA <br />10.01 <br />UA <br />UA <br />Duct Leakage Coefficient <br />1.00 <br />UA <br />35.64 <br />138.85 <br />47 <br />Envelope Heat Load 6,526 etu / Hour <br />Sum of UA X �T <br />Air Leakage Heat Load 5,902 Btu / Hour <br />VolumeX 0.6X4TX.018 <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 Building Heal Loss X 1.10 <br />Oucfs in conditioned space: Sum of Building Heat Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Building and Duct Heat Loss X 1.40 /orForced AirFurnace <br />Building and Duct Neat Loss X 125 for Heat Pump <br />(07/01/13J <br />