1928 78TH PL SE 2017-09-05 - Laserfiche WebLink

Simple Heating System Size: Washington State Ttis heating system sizing calculator is based on the Prescriptive Requirements of the 2012 Washington State Energy Code(WSEC)and ACCA Manuals J and S This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to determine cooling loads. The glazing(window)and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of 0.30. The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2012 WSEC. 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, 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 Program at(360)956-2042 for assistance. Project Information Forced Ai Contact Information Plan 7435 :°>> Heating System Type: To see detailed instructions for each section,place your cursor on the word'Instructions". Desian Temperature Instructions Design Temperature Difference(AT) 46 Lynnwood AT=Indoor(70 degrees)-Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area(sq ft) Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) 8.5 20,698 Glazing and Doors U-Factor X Area = UA Instructions 0.30 438 131.40 Insulation Attic U-Factor X Area = UA {res+reactions _ ..`•— ._'"."_ .-_ , QO?_6 _' 996 25.90 Single Rafter or Joist Vaulted Ceilings U-Factor Area UA Instructions No Vaulted Ceilings in this projectW� a Above Grade Walls(see Figurel) U-Factor Area UA Instructions p-- �""` �' 0.056 2,500 140.00 1 R-21 Floors U-Factor Area UA ilk Ir1S4rUCti^n8 R-3o - - r 0.029 4Z0, 13.63 L310 Below Grade Walls(see Figure 1) U-Factor Area UA Instructions No Below Grade Walls in this project. Slab Below Grade(see Figure 1) F-Factor Length UA Instructions No Slab Below Grade in this projectw Slab on Grade(see Figure l) F-Factor Length UA Instructions ,__._.._ .>.....-�.e..�,.. _.>�:�..:..�:. .. R-lo Perimeter �L.1 0.540 82 44.28 Location of Ducts Instructions -- -------- --_<- = — 0 Duct Leakage Coefficient Unconditioned Space '+i •k 1.10 WNW Sum of UA 355.21 Envelope Heat Load 16,339 Btu/Hour Figure 1 Sum ofUAXAT Air Leakage Heat Load 10,283 Btu/Hour VolumeX 0.6XATX.018 Abo a areae Building Design Heat Load 26,622 Btu/Hour Air Leakage+Envelope Heat Loss �^ Building and Duct Heat Load 29,284 Btu/Hour Ducts In unconditioned space:Sum of Building Heat Loss X 1.10 Ducts in conditioned space:Sum of Building Heat Loss X 1 Maximum Heat Equipment Output 40,998 Btu/Hour Building and Duct Heat Loss X 1.40 for Forced Air Furnace Building and Duct Heat Loss X 1.25 for Heat Pump C (07/01/13)