REVIEWED BLD2023-0640+Energy_Calculations+5.23.2023_2.08.21_PM+3564456BLD2023-0640 RECEIVED
I I n 7
Simple heating System Size: wasnington State Wu�
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA CITY
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling IODMELO
Please complete 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 contact the WSU Energy Program at
energycode@energy.wsu.edu or (360) 956-2042 for assistance.
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AONDS
SERVICES
ENT
Project Information Contact Information :..........................................••••
REVIEWED
Michael Koh Beng Chye & Yvette Sylvia Ann Xavier Nazim Nice BY
15604 75th PI W, Edmonds, WA 98026 13104 Western Ave, #107, Seattle, WA 98121 CITY OF EDMONDS
616-634-1293, michael.yvette@gmail.com 206-204-0490, nazim@motion-space.com € ........BUILDING DEPARTMENT:
Heating System Type: O All Other Systems O Heat Pump
To see detailed instructions for each section, place your cursor on the word "Instructions"
Design Temperature
Instructions Design Temperature Difference (AT)
Edmonds AT=Indoor (70 degrees) -Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
3,690
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
13.8
50,922
Glazing and Doors
U-Factor
X Area =
UA
Instructions
0.280
1,636
458.08
Skylights
U-Factor
X Area =
UA
Instructions
0.50
0�
---
Insulation
Attic
U-Factor
X Area =
UA
Instructions R 49
I 0.026
J
56
1.46
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions R-49Advanced
I 0.020
J
F 3,634
72.68
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions R-21Intermediate
I 0.056
l
2,113
118.33
Floors
U-Factor
X Area
UA
Instructions
�
I 0.025
3,690
92.25
R-38
1
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions No Below Grade Walls in this project.
I 0.028
00
Slab Below Grade see Figure 1)
F-Factor
X Length
UA
Instructions
No Slab Below Grade in this
0.303
I
0�
---
project.
Slab on Grade (see Fi ure 1)
F-Factor
X Length
UA
Instructions
R-10 Fully Insulated
�
I 0.360
J
213
76.68
Location of Ducts
Instructions
Duct Leakage Coefficient
Conditioned Space
1.00
Sum of UA
819.47
Figure 1.
Above Grade
46
Envelope Heat Load 37,696
Btu / Hour
Sum of UA x AT
Air Leakage Heat Load 25,298
Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 62,994
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 62,994
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 78,742
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
(07101113)