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Heatinp Svstem Size: Washinqton State <br />The glazing (window) and door portion of this calculator assumes the installed giazing and door producfs have an area weighted average U-factor of <br />0.30. The incorporated insulation requirements are the minimum prescripfive amounts specified by the 2012 WSEC. <br />Please fill out ail 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 Informafion Coniact Informaiion <br />Unit E3 Townhome Polygon Northwest <br />Silver Lake Townhomes Alaina Robertson <br />Everett, Washin ton (425} 606-0005 <br />H@atlllq SySt@ITI TVf�e� � Forced Air Fumace Q Heat Pump <br />To see detailed instrucfions for each section, place your cursor on the word "Instructions". <br />Desiqn Temperature <br />i�r�i���:t�or,< _ _ Design Temperature Difference (OT) <br />� Everett JC Y �.� 4T = Indoor (70 degrees) - Ou(door Design Temp <br />_�,�„��.�=K „� _� — <br />Area of Buildinp <br />Conditioned Floor Area <br />�r,sdruciion5 Conditioned Floor Area (sq ft) <br />Average Ceiling Height <br />�rasiru��ia,� Average Ceiling Height (ft) <br />Glazinq and Doors <br />itlSfflFr_�IOiiS <br />Insulation <br />Attic <br />Snstruce;ons r ___ _ _. <br />I � <br />R-49 F�� <br />Fi.,.�.�-�� �y - - ,a !�._-�-<xi.=. <br />Single Rafter or Joist Vaulted Ceilings <br />InsPeucfions � — _. .______ - - - <br />No Vaulted Ceihngs In this proJect � Ex <br />:�..� � ;� <br />Above Grade Walls �5ee Fiy�re �� <br />Instructions � _ _.._�.�._W. _ _ s � <br />R-21 � � <br />;q��,�. � - - <br />� ,.,,_.r�s�iTai� � � <br />Floors <br />13�siructions �_ -.-'.-`""..•'"""",. - — — <br />R-30 � r <br />: <br />- - -, <br />�_...:.: :�,�.._.::�. . , — - <br />Below Grade Walls �see Frnu.e �� <br />o„s�rtsctic����s -- — — — <br />� \o �elow Grade Walls in thls pro�ect �: � <br />, `3��-i�Ni� 1 <br />Slab Below Grade �see Fraure n <br />lns4rttc2icstis � ���- ' -- � -� <br />i4o Slab Below Grade In this prolect � �, .� <br />=�__' �. <br />Slab on Grade �see Fr��re n <br />ill��l'ltCii057S ..._ . . <br />� R !0 Perimeter `�' .) <br />�;,,K - �r..• "�= <br />Location of Ducts <br />oi,��� ��c�Q�� � , � � <br />CondiUoned Space � <br />��. _ ._. . .. _ <br />Fiqure 1. <br />� ,���, <br />,� <br />�� Above Grade <br />;�, �_.._,_. <br />.,, .,: <br />� ��; BelowGrad � � � � � <br />1,585 <br />Conditioned Volume <br />8.5 13,473 <br />U-Factor X Area = UA <br />0.30 269 80.70 <br />U-Factor X Area = UA <br />0.026 263 6.84 <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 />52$ <br />Area <br />379 <br />Area <br />0 <br />Le� <br />UA <br />UA <br />29.57 <br />UA <br />10.99 <br />UA <br />UA <br />F-Factor Len th UA <br />0.540 81 43.88 <br />Duct Leakage Coefficient <br />�.�0 <br />Sum of UA <br />171.97 <br />47 <br />Envelope Heat Load 8,083 Btu / Hour <br />Sum ol UA X 4T <br />Air Leakage Heat Load 6,839 Btu / Hour <br />VolumeX 0.6X�TX.o18 <br />Building Design Heat Load 14,921 Btu / Hour <br />Air Leakage + Envelope Heat Loss <br />Building and Duct Heat Load 14,921 Btu / Hour <br />Ducts in unconditioned space: Sum of Building Heat Loss X 1.10 <br />Ducts in conditioned space: Sum of Building Heat Loss X 1 <br />Maximum Heat Equipment Output 20,890 Btu / Hour <br />Building and Duct Heat Loss X 1.40 for Forced Air Furnace <br />Building and Duct Heat Loss X L25 for Heat Pump <br />(07/01/13) <br />