1602 COLBY AVE 2019-01-25 - Laserfiche WebLink

Simple Heating System Size: Washington 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 Sheldon Anderson Sessa Engineering Services,LLC 1602 Colby Avenue Vincent Sessa,P.E. Everrett,WA 98201 (425)967-5522 Heating System Type: ®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) 2,983 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) 9.0 26.847 Glazing and Doors U-Factor X Area = UA Instructions 0.30 361 108.30 Skylights U-Factor X Area = UA Instructions 0.50 0 Insulation Attic U-Factor X Area = UA Instructions R49 0.026 534 13.88 �J Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions R-38 Vented ' 0.027 754 20.36 Above Grade Walls(see Figure 1) U-Factor X Area UA Instructions R-21 Intermediate0.056 2,566 143.70�� Floors U-Factor X Area UA Instructions - 0.029 260 7.54 R-30 Below Grade Walls(see ne. _ -.- • a_.� �_ Figure 1) U-Factor X Area UA Instructions 0.042 1,107 46.49 R-21 Interior '� Slab Below Grade(see Figure 1) F-Factor X Length UA Instructions 0.570 123 70.11 R-5 Thermal Break at slab edge ' - Slab on Grade(see Figure 1) F-Factor X Length UA Instructions No Slab on Grade in this project. V l 0 Location of Ducts Instructions Duct Leakage Coefficient Unconditioned Space •• 1.10 Sum of UA 410.38 Envelope Heat Load 20,109 Btu/Hour Figure 1. Sum of UAX AT Air Leakage Heat Load 14,207 Btu/Hour VolumeX 0.6 XAT X.018 Above Grade Building Design Heat Load 34,316 Btu/Hour Air Leakage+Envelope Heat Loss Building and Duct Heat Load 37,748 Btu/Hour Ducts in unconditioned space:Sum of Budding Heat Loss X 1.10 Ducts in conditioned space:Sum of Building Heat Loss X 1 Maximum Heat Equipment Output 52,847 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 3/3 (07/01/13)