7911 20TH AVE SE 2018-03-14 - Laserfiche WebLink

Simple Heating System Size: Wa--gton State This 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 Contact Information Plan 1775 L t Heating System Type: O All Other systems 0 Heat Pump To see detailed instructions for each section,place your cursor on the word"Instructions". Design Temperature Instructions - Design Temperature Difference(AT) 49 Everett Paine AFB AT=Indoor(70 degrees)-Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area(sq ft) , 1,,775,; Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) .,,_._,;.,8.5. 15,088 Glazing and Doors U-Factor X Area = UA Instructions 0.30 ,, 285, ,,,,; 85.50 Skylights U-Factor X Area = UA Instructions 0.50 - -- Insulation Attic U-Factor X Area = UA Instructions a9 0.026 770, 20.02 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions R-38 Vented R 0.027 Above Grade Walls(see Figure 1) U-Factor X Area UA Instructions R-2.1 Intermediate 0.056 , ,,,2,000 ,_ . 112.00 Floors U-Factor X Area UA Instructions P "' - "' R 30 Cr0.029 4,95 14.36 Below Grade Walls(see Figure 1) U-Factor X Area UA Instructions —" - 800; lioii No Befoww Grade Walls in this project. Slab Below Grade(see Figure 11 F-Factor X Length UA InstructionsNo selection ii Select conditioning Slab on Grade(see Figure 1) F-Factor X Length UA Instructions 0.540 ..„,..116 62.64 toR-10 Perimeter 7 Location of Ducts Instructions _ ---- — — Duct Leakage Coefficient No Ducts � tti1.00 Sum of UA 294.52 Envelope Heat Load 14,431 Btu/Hour Figure 1. Sum of UAXAT Air Leakage Heat Load 7,984 Btu/Hour VolumeX 0.6X11TX.018 Above Grade Building Design Heat Load 22,416 Btu/Hour ' *z Air Leakage+Envelope Heat Loss '"15,11 Building and Duct Heat Load 22,416 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 31,382 Btu I Hour r Building and Duct Heat Loss X 1.40 for Forced Air Furnace Building and Duct Heat Loss X 1.25 for Heat Pump (07/ )