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. V - ptcx � ��d � �, �,� � d <br />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 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 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 Informafion <br />Unit El Townhome Polygon Northwest <br />Silver Lake Townhomes Alaina Rohertson <br />Everett, Washington (425) 60b-D005 <br />NeatinqSvstemTvpe: � ForcedAirFurnace Q HeatPump <br />To see detailed instructions for each section, place your cursor on the word "Instructions". <br />Desiqn Temperature <br />'���`<<=�f1O"� ---- — - — Design Temperature Difference (�T) <br />`I Everett )C � �T =lndoor (70 degrees) - Outdoor Design Temp <br />t � : +�., .�.._.._, � <br />A�ea of Buildinq <br />Conditioned Floor Area <br />ins;ru��ions Conditioned Floor Area (sq ft) <br />Average Ceiling Height <br />�"��r"�i1O1� Average Ceiling Height (ft) <br />Glazinq and Doors <br />Insiructiuns <br />Insulation <br />Attic <br />Instructions _ - _____ — <br />j R-49 J <br />4• _.._...____.� ,.:.��� �_. <br />Single Rafter or Joist Vaulted Ceilmgs <br />h:s,nic!ions � _ : : ._... <br />�No vaulted Cellinc�s In this proJe[t � <br />t.,c....eW.._... . r6ie.tc:3°"�..�a.......�.�....a� <br />Above Grade Walls �:«F�gore» <br />fnsiructiars - -� — —� <br />R-21 � <br />•-� , <br />Floors <br />._. _... <br />l;tstruc'�or�s � — - � , � <br />f R-30 <br />Below Grade Walls �seo Frg�re �) <br />_ _ _-- <br />lhsiruciic�3s -_ __ ._ ���_ � � <br />��No Below Grade Walls in thls proj2ct. � <br />Slab Below Grade r5ee Frn�.� n <br />__ __ __ <br />I�:s'riiciions _ -- ---- — �— -.J <br />� No Slab lSefow Grade m this O�o)ect. � <br />Slab on Grade �see Fic�re �i <br />II1SifLCliGE15 ._.. ....._._'__ ._ _-__'_-- � .�_ _.. _ <br />� R-10 Penme[er �„ I <br />.��. �._ _J <br />Location of Ducts <br />instri.ctions � ..............._...W ...._y_.,.Ww ..._._...,._ ..a=___�..:_..� <br />CondlUoned Space � <br />f,._,.,..: <br />Fiqure 1. <br />_�,_�a� .,ri � <br />1 Above Grade ' <br />n - <br />.;� <br />� �1 e, , l — - <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 />Area <br />� <br />Area <br />4'13 <br />Area <br />345 <br />Area <br />0 <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 �T <br />Air Leakage Heat Load 5,902 Btu / Hour <br />Volume X 0.6 X oT X.018 <br />Building Design Heat Load 12,428 Btu / Hour <br />Air Leakage + Enve/ope Heat Loss <br />Building and Duct Heat Load 12,428 Btu / Hour <br />Ducts in unconditioned space: Sum ol Bui/ding Heat Loss X 1.10 <br />Ducts in conditioned space: Sum of Burlding Heat Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Building and Duct Heat Loss X 1.40 /or Foroed Air Furnace <br />Buifding and Duct Heat Loss X 1.25 for Heaf Pump <br />(07/01/13) <br />