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� � ' p`�x, �,d � �, Z. i ,13 <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 systems 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 lnformation <br />Unit El Townhome Polygon Northwest <br />Silver Lake Townhomes Alaina Robertson <br />Everett, Washin ton (425) 606-0005 <br />HEatltlq SVSt@I71 TVI�e: OO 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 />o�,str��c:io�s _._ __� _��._. _. _ Design Temperature Difference (�T) <br />j Everett JC _ !-A J� <br />�T = Indoor (70 degrees) - Outdoor Design Temp <br />l�.__ . •.—Y� . . <br />Area of Buildinq <br />Conditioned Floor Area <br />ir�_u«::ao,,; ConditionedFloorArea(sqft) <br />Average Ceiling Height <br />ins,ru�a�,.,; Average Ceiling Neight {ft) <br />Glazinp and Doors <br />Instructions <br />Insulation <br />Attic <br />instruciionc . _ _ __--------,� <br />____ . <br />R-49 - .�— - - � � <br />��--'� �.'� .. . . . _ <br />Single Rafter or Joist Vaulted Ceilings <br />_..--. _.-- <br />Ir�saructicras � __. __ _,. _. _—, I <br />No Vaultea Cellm95 In this proJeci � <br />�'------•- - — — � - <br />Above Grade Walls �sre F�e�re �� � <br />insfructio�;s _.- - —__--------- <br />� R-21 . . . . �. � <br />Floors <br />_ _ __ _.__ __. <br />Ir;structios�s -- __ — _� <br />� R 30 � <br />t. � � . ,..,, .,�H d;,-y, .,r,.:. <br />Below Grade Walls �se� F�gure �� <br />Insiructios�s - .. _ _ _ _.. --- <br />� No Below Grade t/alls in this pro)ect �� <br />, __ _,. - l <br />� <br />�k . � . <br />Slab Below Grade rsee F�p�re r� � <br />€i:siructions :__ _ _ . _:_._�___ <br />� No Slab Elelow Grade in this pro�ect� �' <br />Slab on Grade �see F�o�re r� <br />inst�i;ciions _.` - _____ -.=v � <br />i <br />R-10 Penmetu � �� <br />Location of Ducts <br />insiructions � __..o..._,�. - .,....,...,...._d..b ...............J <br />I Conditioned Space � <br />Fiqure 1. <br />.'� A6ove Grede � <br />-- BelowGrade ��� � �---�� <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 />0 <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 OT <br />Air Leakage Heat Load 5,902 Btu / Hour <br />Vo/umeX O.6X�TX.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 8uilding Heat Loss X 1.10 <br />Ducts in condifioned space: Sum ol Building Heat Loss X 7 <br />Maximum Heat Equipment Output 17,399 Btu ! Hour <br />Building and D�ct Heat Loss X 1.40 /or Forced Air Fumace <br />Building and Duc[ Neat Loss X 1.25 for Heat Pump <br />(07/01/13J <br />