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' . . _ � ��' �� � y <br />Sim le Heat�n S stem Size: Washin ton State � ,� <br />p 9 Y 9 <br />This heatinq system sizinp calculator is based on the Prescriptive Requirements of the 2012 Washinqton State Enerav Code (WSEC) and ACCA <br />Manuals J and 5. This calculator wili calculate heatina loads onlv. ACCA procedures for sizinq coolinq svstems should be used to determine coolina <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, piease call the WSU Energy Extension <br />Program at (360) 956-2042 for assistance. <br />Project lnformation Contact Information <br />Unit El Townhome Polygon Northwest <br />Siber Lake Townhomes Alaina Robertson <br />Everett, Washin ton (425) 606-0005 <br />HeStlilQ SySt@Ill TVp@: O Forced Air Furnace Q Heat Pump <br />To see defailed instrucfions for each sectron, place your cursor on the word "Instructions". <br />Desiqn Temperature <br />in��r�;ct�c:,: . _ _ ___. .__�__�w::.; �W.�_.___.___._— � Design Temperature Difference (c1T) <br />Ev�rClt )C �` pT = Indoor (70 degieesJ - Outdoor Design Temp <br />� <br />Area of Buiidinq <br />Conditioned Floor Area <br />��= �' �� �"O1`° Conditioned Floor Area (sq ft) <br />Average Ceiling Height <br />!"s�;'-'�tia'�, Average Ceiling Height (ft) <br />Glazinq and Doors <br />i;stnsction� <br />Insulation <br />Attic <br />In_;ruc --- ---------------------- <br />.,_. <br />� � R-49 � , ;i <br />t �,�.-.- ' � ��s <br />Single Rafter or Jofst Vaulted Ceitings <br />_ _- - <br />tns.ru:i;uns . ._.._._._. _�_ <br />_..._ ..._._. _....__._ .._, ' <br />! No 4aul[ed Celiin95 In thls proJeH �,,� <br />�r...,.;i�i`-�w.. <br />Above Grade Walls �:eeF�e�re» <br />Instruct6ons -- - --- ] <br />i R-21 � <br />4� -- --�:nv�:c.j <br />Floors <br />_ _ _......._ ..._.._.__ __ <br />Instructio;zs .---- _ _ <br />' ; R-30 � ;,. <br />y ._�_._. �_.. --- <br />N,�,�:.� - , <br />.��4.._._ <br />Below Grade Walis �seeFigure �) <br />_ _ -.. __ <br />!rr�tru�tie„s •--__.___----.. ____._______�___._�__._ <br />ho Oelow Grade Walls in this projeCL �', ,� <br />—�� _ .,:.b <br />Slab Below Grade �see Fio�re �i <br />;nsVuctson=. - - — — <br />( ho Siab 6elow Grade m this pro�ect �` � <br />l - �:��,;:-...., <br />Slab on Grade �see F�vure n <br />�nscructio�> _ _ - -- j <br />R 10 Penmeter .� <br />.� ...:.4=.,�a�.. � ��ss. .. - � - - �' - - <br />Location of Ducts <br />Onsfru�.:iian�- - <br />Conditioned Space '+� <br />_�.�,�..---��.,.,.� �,�_v.. �, �� �;'. <br />Fiqure 1. <br />Above Grade : <br />... � Below Grede � .. _ - � .` .-- <br />1,366 <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 />OA26 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 />Area <br />� <br />Area <br />413 <br />Area <br />345 <br />Area <br />� <br />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 of UA X AT <br />Air Leakage Heat Load 5,902 Btu / Hour <br />Vo/umeX O.6X4TX.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 ol Building Neat Lass X 1. f0 <br />Oucts in conditioned space: Sum o1 Building Neat Loss X 1 <br />Maximum Heat Equipment Output 17,399 etu / Hour <br />Building and Duct Heat Loss X 1.40 /or Forced Air Fumace <br />Building and Duct Heat Loss X 1.25 for Heat Pump <br />�� <br />(07/01/13J <br />