Laserfiche WebLink
� <br />V • pt�x � ���, � t, �,-� � g <br />Simple Heating System Size: Washington State � <br />This heatinq svstem sizinq calculator is based on the Prescriptive Requirements of the 2012 WashinAton State Enerqv Code (WSEC) and ACCA <br />Manuals J and S. This calculator will calculate heatinq loads oniV. ACCA procedures for sizinq coolinp sVstems should be used to determine coolincl <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 Ei Townhome Polygon Northwest <br />Silver Lake Townhomes Alaina Robertson <br />Everett, Washin ton (425) 606-0005 <br />H@2tlflq SySt@Ill TVI�e: OO Forced Air Furnace � Heat Pump <br />To see detailed instructions for each section, place your cursor on the word "Instructions". <br />Desiqn Temperature <br />i'�=�� "` �'�"' � - - --•-W---�----w�------ — Design Temperature Difference (4T) <br />�Everett JC +W��W� �T = Indoor (70 degrees) - Outdoor Design Temp <br />Area of Buildinq <br />Conditioned Floor Area <br />in :cr��::iio�,� Conditioned Floor Area (sq ft) <br />Average Ceiling Height <br />i"3�'t'�t'°"� Average Ceiling Height (ft) <br />Glazinq and Doors <br />fnsfructions <br />Insulation <br />Attic <br />InsYrucnors , <br />- - - _ _ __ _. — <br />� R-49 � ! <br />� _ _ .�. _...... <br />Single Rafter or Joist Vaulted Ceilings <br />_ _.._ .....-- <br />,,,�,�,����u:,, _ _ �_- -__- _,^ 1 <br />No Vaul[ed Celhn9s In [his proJetl �' <br />� 1:� <br />Above Grade Waus �are F�e�re �� <br />i�tsiructians - ---- ---...-----'— ��:—� <br />R-21 � , <br />Floors <br />_ __ _ ._ __ _ __. <br />i!iSifUClI0i15 ' — —"�--'—"� <br />� �R30 � <br />— � —a�e:�aYltid�4P: . <br />Below Grade Walls �se� Frgure �1 <br />___ _ _ _ _. _____ <br />Instruciions - _ <br />No Befow Grade walls in thls pro�ect. �;,�� I <br />� ^',�.� t _ __...._..o....�.s�;L;�::J <br />Slab Below Grade raee Fia�re a <br />Ir.s'ri�dions � -- — -- ---- <br />i No Slab [ielow Gryade in this pro�ecL �"� <br />Slab on Grade �see F�.o�re �i <br />in�i� uctioirs i � <br />� R-10 Pfrun2t�r �: <br />� .......r - - - <br />Location of Ducts <br />Instructions I : : _ _ -w� <br />[ondiliuned Space � <br />�._.__::._�..._...�__.__.r ,��....,_...._ <br />Fiqure 1. <br />' Above Grade � <br />� BelowGrode I � � <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 Area <br />"_ 0 <br />U-Factor Area <br />0.056 413 <br />U-Factor Area <br />0.029 345 <br />U-Factor Area <br />--- � <br />F-Factor 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 />Suln o/ UA X 4T <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 Building Heat Loss X 1. f 0 <br />Ducts in conditioned space: Sum of Buildinq Heat Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Building and Duct Heat Loss X i.40lorForced AirFurnace <br />Building and Duct Neat Loss X 125 for Heaf Pump <br />(07/01/13J <br />