Laserfiche WebLink
Simple Heating System Size: Washington State <br /> This heating system sizing calculator is based on the Prescriptive Requirements of the 2012 Washington State Energy Code(WSEC)and ACCA <br /> Manuals J and S.This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to determine cooling <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 Information <br /> Unit El Townhome Polygon Northwest <br /> Eclipse Jamie Aubrey <br /> Everett,Washington (425)586-7700 <br /> Heating System Type: O Forced Air Furnace 0 Heat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions". <br /> Design Temperature <br /> Instructionsi ...,::._ Design Temperature Difference(DT) 47 <br /> Everett JC AT=Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Instructions Conditioned Floor Area(sq ft) 1,344 <br /> Average Ceiling Height Conditioned Volume <br /> Instructions Average Ceiling Height(ft) 8.5 11,424 <br /> Glazing and Doors U-Factor X Area = UA <br /> Instructions 0.30 .:_ 18 > 54.78 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> InstructionsR 49 0.026 591 15.37 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor Area UA <br /> Instructions <br /> I No_Vaulted Ceilings in this project j --- <br /> 4 <br /> Above Grade Walls(see Figure 1) U-Factor Area UA <br /> Instructions 0.056 413 23.13 <br /> I,, ft 21 ....4,.: .' <br /> Floors U-Factor Area UA <br /> Instructions ----.:-._— - -- <br /> R-30 v 1 I 0.029 345 10.01 <br /> Below Grade Walls(see Figure 1) U-Factor Area UA <br /> Instructions1 <br /> No Below Grade Walls in this project w ""- --- <br /> Slab Below Grade(see Figure 1) F-Factor Length UA <br /> Instructions ..._.: ...._._ .._.._ _— 1I <br /> LNo Slab Below Grade in this project. J <br /> V I --- <br /> Slab on Grade(see Figure 1) - F-Factor Length UA <br /> Instructions - ._...__ _...: <br /> R to Perimeter 0.540 34 18.36 <br /> Location of Ducts <br /> Instructions - -- Duct Leakage Coefficient <br /> Conditioned Space ,j <br /> 1.00 <br /> Sum of UA 121.64 <br /> Envelope Heat Load 5,717 Btu/Hour <br /> Figure 1. Sum of UA XAT <br /> 6��� Air Leakage Heat Load 5,799 Btu/Hour <br /> "^; VolumeX 0.6 X AT X.018 <br /> Above Grade N_ Building Design Heat Load 11,516 Btu/Hour <br /> - - Air Leakage*Envelope Heat Loss <br /> - L Below Grade • <br /> Building and Duct Heat Load 11,516 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 16,122 Btu/Hour / <br /> Forced <br /> Building and Duct Heat Loss X 1.40 for Air Furnace <br /> Heat Pump <br /> and Duct Heat Loss X 1.25 for Heat Pump <br /> ( 9 P <br /> (07/01/13) <br />