10708 HOLLY DR B 2022-07-20 - Laserfiche WebLink

• • Simple Heating System Size:Washington State This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 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 2015 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 Davis ADU Neil Jorgensen 10708 Holly Dr 13 Architects LLC Everett WA 98204 425-242-0369 Heating System Type: ()All Q Heat Pump To see detailed instructions for each section,place your cursor on the word"Instructions". Design Temperature .aions Design Temperature Difference(AT) 49 Everett Paine-AF8- v AT=Indoor(70 degrees)-Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area(sq ft) 568 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) 8.4 4,771 Glazing and Doors U-Factor X Area = UA Instructions 0.30 81 24.30 Skylights U-Factor X Area = UA 0.50 Insulation Attic U-Factor X Area = UA Select R-yams .j: No selection 1,098 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions 0.027 568 15.34 R-38 Vented Above Grade Walls(see Figure 1) U-Factor X Area UA Instructions 0.056 R-21Intermediate Floors U-Factor X Area UA Instructions - - -- R-30 . 0.029 568 16.47 Below Grade Walls(see Figure 1) U-Factor X Area UA •:Istructions ---No Below Grade Walls in this project --- Slab Below Grade(see Figure n F-Factor X Length UA nstructions No Slab Below Grade in this project V --- Slab on Grade(see Figure 1) F-Factor X Length UA 'nstruction, No Slab on Grade in this project V --- Location of Ducts Instruction- Duct Leakage Coefficient llecoedhioned Space � 1.10 Sum of UA 56.11 Envelope Heat Load 2,749 Btu/Hour Figure 1. Sum ofUAX AT Air Leakage Heat Load 2,525 Btu/Hour Volume X 0.6 X AT X.018 Above Grade Building Design Heat Load 5,274 Btu/Hour Air Leakage+Envelope Heat Loss "r Building and Duct Heat Load 5,802 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 8,122 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 (07/01/13)