7207 UPPER RIDGE RD 2017-03-13 - Laserfiche WebLink

Simple Heating System Size:Washimijidn 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 2199 Marie Anderson @ Nash&Asso Architects (425)242-7491 marie@Nash-Architects.com Heating System Type: OO 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) 47 'Everett JC W jAT=Indoor(70 degrees)-Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area(sq ft) 2,199 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) 8.4 18,560 Glazing and Doors U-Factor X Area = UA Instructions 0.30 , 361 108.42 Skylights U-Factor X Area = UA Instructions 0.50 -- Insulation Attic U-Factor X Area = UA Instructions -- -" R a9 .. 0.026 1,040 27.04 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions R-38 Vented v 0.027 292 7.88 Above Grade Walls(see Figure 1) U-Factor X Area UA Instructions R-21 Intermediate 0.056 2,080 116.46 Floors U-Factor X Area UA Instructions — 0.029 1,332 38.63 R-30 Below Grade Walls(see Figure 1) U-Factor X Area UA Instructions •Select R-value . i No selection °-----_ Slab Below Grade(see Figure 1) F-Factor X Len UA Instructions Select conditioning w No selection --- Slab on Grade(see Figure 1) F-Factor X Len th LJ UA No selection -- Instructions - " Select R-value Location of Ducts Instructions Duct Leakage Coefficient Unconditioned Space 1.10 Sum of UA 298.44 Envelope Heat Load 14,027 Btu/Hour Figure 1. Sum of UA X AT Air Leakage Heat Load 9,421 Btu/Hour Volume X 0.6 X AT X.018 Above Grade Building Design Heat Load 23,447 Btu/Hour Air Leakage+Envelope Heat Loss Below Grade Building and Duct Heat Load 25,792 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 36,109 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)