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<br />Simple Heating System Size: Washington State
<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 />Pro'ect Information Contact Information
<br />Unit E17ownhome Pol gon Northwest
<br />Silver Lake Townhomes Alaina RoberLson
<br />Everett, Washington (425)506-0005
<br />Fieatinq Svsicrn TVpe: O forccd Air fuinzce Q HeaC Pump
<br />To see detailed instructions for each sectron, place your cursor on the word "Instructions"_
<br />Design Temperature
<br />instrucf;ons ___ _�_ .__:_._ -.__: __, ,� Design Temperature Difference (�T)
<br />. Everett)C _ _ �,A�,�, �T=lndoar(70degrees)-OutdoorDesgnTemp
<br />�.:- . �.,-.� --_-�.,,-,-.,.-,. -�-.,-._.. _.
<br />Area of Buildina
<br />Conditioned Floor Area
<br />i"st' "�'�,':' Conditioned Floor Area (sq ft)
<br />Average Ceiling Height
<br />!rstruc�,oas Average Ceiling Height (ft)
<br />Glazing and Doors
<br />insYrucYion>
<br />Insulation
<br />Attic
<br />_ __ _ __ �
<br />instruc4iens � �._�. �._ �� ��_„��_�_
<br />-`� ]
<br />R-49 � � �l:i
<br />� — — �. �_ ��.
<br />Single Rafter or Joist Vaulted Ceilings
<br />_ . _. . _.. _ __...._...
<br />instructions --"'."' ,:,:�
<br />< < . _ . . . _. . ... _..
<br />;'�- No vaulted Celfings In thls pro�e[t. �
<br />� . - —'-- ..,.-,.
<br />�wa�...,ta...s.:��k'e`.wLbSCSY �_�._.
<br />Above Grade Walls �seeFryure»
<br />__ __ _ _ _. .. . _.
<br />In>truciians __.. _ �_—.._______,._��._._._._..,_..,.._....�
<br />: R•21 � 1-.�
<br />E:
<br />Floors
<br />lnsIrucYions --
<br />t R-30 +
<br />_ �� �
<br />Below Grade Walls IseeFivure �)
<br />I�sirurPions ` '--_.: .._ . ::: .. .------ . . .._.:__ _.. ._: __._, �
<br />No pelnw Grar7c �aus ��, mis n�o�ec�. •'
<br />. �_..._._ _.�__...__...,.,.,. ..... -�-.�
<br />Slab Below Grade �:ee Fiaure �J
<br />Insiructions .".:- ._-- �-� ----- ---� ---�..—� .
<br />�
<br />No Slab Belmv Grade m this pro)cct �`s:�
<br />___-._�._�.....4. .
<br />y�.::: �� - -
<br />Slab on Grade �saeFru��et)
<br />IF�ii� GCYIOI75 . ..... .___'_"_.."__'_.___�_. �_.e__..,"" ___..�.__, �
<br />[ ; R-!0 Perimeter � �
<br />!_w.
<br />Location of Ducts
<br />I�xstructiors ...... _........._.. _ .._.
<br />K " Condltioned SPace � � � '�,�
<br />� ,, e�;� �:�,: _ , :.��;�,� -
<br />Fiqure 1.
<br />�
<br />a6ove Gmae
<br />1,368
<br />Conditioned Volume
<br />8.5 11,628
<br />U-Factor X Area = UA
<br />0.30 1$'1 ; 54.42
<br />U-Factor X Area — UA
<br />0.026 602 15.65
<br />U-Factor
<br />U-Factor
<br />0.�56
<br />U-Factor
<br />0.029
<br />U-Factor
<br />F-Factor
<br />Area
<br />0
<br />Area
<br />413
<br />Area
<br />��
<br />Area
<br />�
<br />Le�
<br />UA
<br />UA
<br />23.13
<br />UA
<br />10.01
<br />UA
<br />UA
<br />F-Factor Length 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 UAXOT
<br />Air Leakage Heat Load 5,902 Btu / Hour
<br />VolumeX 0.6X�TX.018
<br />Building Design Heat Load 12,428 Btu / Hour
<br />AIr Leakage + Envebpe Heaf Lass '
<br />Building and Duct Heaf Load ` 12,428 Btu / Hour
<br />Ducfs in unconditloned space: Sum of BuiMing Heat Loss X 1. f0
<br />Duc(s In condltioned space: Sum o! Building Neat Loss X 1
<br />Maximum Heat Equipment Output 17,399 Btu / Hour
<br />BuAding arM Duct Neat Lau X 1.40 for Forced Av Furnace
<br />Building end Duct Heat Lass X 1.251or Heat Pump
<br />yj (07/01/13)
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