Laserfiche WebLink
� � ����, ' �� � �, �, .. � � � � <br />Simple Heating System Size: Washington State � <br />This heatina svstem sizinq calculator is based on the Prescriptive Repuirements of the 2012 Washinaton State Enerqv Code (WSEC) and ACCA <br />Manuals J and 5. This calculator will calculate heatinq loads onlv. ACCA procedures for sizinq coolina 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 />D.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 />Projeci Informafron Contact Information <br />Unit ES Townhome Polygon Northwest <br />Silver LakeTownhomes Aiaina Robertson <br />Everett, Washin ton (425) 606-OODS <br />Heating System TVpe: O Fo«d a� F���a�e Q Heat Pump <br />To see detarled instructions for each section, place your cursor on fhe word "Instructions". <br />Desiqn Temperature <br />�;;5cr�,�t�o,� _ __ _., -- ---_ = � � Design Temperature Difference (OT) <br />EvC�Btt JC __ Yz�� pT =lndoor (70 degreesJ - Ouldaor Design Temp <br />�. �. —��;�i�,'r� ., +:r:w� � <br />Area of Buiiding <br />Conditioned Floor Area <br />i;,s,�uctio,�s Conditioned FloorArea (sq ft) <br />Average Ceiling Height <br />insiruceion5 Average Ceiling Height (ft) <br />Glazinq and Doors <br />Instructior,s <br />Insulation <br />Attic <br />insCruc4iors '_-----.__�:_..-;--_::�.� <br />� R-49 � �}: <br />�.e�> . ..,;��. �,�� , <br />Single Rafter or Joist Vaulted Ceilings <br />lnstn:cticns �_ ---- ���`�-^ <br />No Vaulted Cel6ngs In this pro)ect ��.�- <br />a ;r..b. � �, vt � <br />Above Grade Walls �:re F�e�re» � <br />[rutruc±ions �-_. __ -._._ .�____�_�_._.^ <br />R-21 � I . ; <br />s�i� �F°' . <br />Floors <br />____ ........_......... <br />instructions - --- -- — <br />� ; R 30 `�.: � <br />4�ati�L13'el: - } ='Y'4$lJ�i. � - . . . . . . <br />Below Grade Walls �sK Fie�re a� <br />_ _.___.- -. __.__.___ .. <br />�,=rr��;�s�nn��� -- -__ _ _ � � <br />f�o U-.I � f Crd'e �/711s �n ttiis pro)�C( "' <br />! - — - __ . <br />Slab Below Grade rs� F�a��� vi <br />Itis.neciions -- - - ,� <br />No Slab Below GraQe in this project ��� <br />� �,,, k >'h.,:a_ <br />Slab on Grade �see F�aure u <br />i�utruciions . -.. _-._-- .. ---------.—��_ �-� <br />` � R-10 Pe��meter � � <br />�,-^�=•.4-- ---- —_�, <br />Location of Ducts <br />4�iSPt'itC�ioti5 ___ . _.. ..v . . ..... <br />Condiuoned Space � <br />.. .... �a:s'*�"�r�;... �,.-....7`� -�^�� � <br />Fi ure 1. <br />_�_,,,��`>"� <br />r; _ c <br />Above Grode <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 6fl2 , 15.65 <br />U-Factor <br />U-Factor <br />0.056 <br />U-Factor <br />0.029 <br />U-Factor <br />F-Factor <br />F-Factor <br />0.540 <br />Sum of UA <br />Area <br />� <br />Area <br />493 <br />Area <br />345 <br />Area <br />� <br />Le� <br />Len th <br />ss <br />Duct Leakage Coe�cient <br />1.00 <br />UA <br />UA <br />23.13 <br />UA <br />10.01 <br />UA <br />UA <br />UA <br />35.64 <br />138.85 <br />47 <br />Envelope Heat Load 6,526 Btu / Hour <br />Sum o/ UA X dT <br />Air Leakage Heat Load 5,902 Btu / Hour <br />VolumeX O.6XdTX.018 <br />Building Design Heat Load 12,428 Btu / Hour <br />Air Leakage + Envebpe HeaKoss <br />Buitding and Duct Heat Load 12,428 Btu / Hour <br />Ducts in uncondifioned space: Sum of Bui/ding Heat Loss X 1.10 <br />Ducts in condiUoned spece: Sum of Build'�ng Heat Loss X 1 <br />Maximum Heat Equipment Output 17,399 Btu / Hour <br />Building and Ouct Hea! Loss X f.40 for Forced Air Furnace <br />Building and Duct Heat Loss X 1.251or Heat Pump <br />��6 <br />(07/Ol/13J <br />