REVIEWED BLD2021-1561+Energy_Calculations+11.16.2021_12.11.47_PM+2522837REVIEWED
BY RECEIVED
CITY OF EDMONDS Nov 19 2021
Simple Heating System Size: Washington State I CITY OF EDMONDS
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA °E[Eo PPT
ARTMENRV'cEs
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling loads.
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.
Project Information
Boehlke and Naki
Contact Information
Jim Musar DBA Aspects Inc.
19301 Olympic View Dr
15617 37th Ave NE
Edmonds WA. 98020
Lake Forest Park WA. 98155
Heating System Type: O All other Systems
OO Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions"
Design Temperature
Instructions I Design Temperature Difference (AT)
Edmonds 1
AT =Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
2,066
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
8.0
16,528
Glazing and Doors
U-Factor
X Area =
UA
Instructions
u-o.so
.
I 0.300
1
380
113.91
Skylights
U-Factor
X Area =
UA
Instructions
0.50
27
13.40
Insulation
Attic
U-Factor
X Area =
UA
((
Instructions 1 R 49
I 0.026
1
F 2,039
53.01
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions `Select R-Value
I No selection
F_ I
---
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
I 0056
1,220
68.32
R-21 Intermediate
.
J
Floors
U-Factor
X Area
UA
Instructions
0.029
2,066
59.91
R-30
I
Below Grade Wallls (see Figure 1)
U-Factor
X Area
UA
Instructions Select R-value
1
I No selection
F_ I
---
Slab Below Grade (see Figure 1)
F-Factor
X Length
UA
Instructions
Select conditioning
�
I No selection
0
---
Slab on Grade (see Figure t)
F-Factor
X Length
UA
Instructions L Select R-Value
I No selection
J
FI
---
Location of Ducts
Instructions
Duct Leakage Coefficient
Unconditioned Space
1.10
Sum of UA
308.56
Figure 1.
Above Grade
46
Envelope Heat Load 14,194
Btu/Hour
Sum of UA x AT
Air Leakage Heat Load 8,211
Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 22,405
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 24,645
Btu / Hour
Ducts in unconditioned space: sum of buildinq heat loss x
1.10
Ducts in conditioned space: sum of building heat loss x 1
Maximum Heat Equipment Output 30,807
Btu / Hour
Buildinq and duct heat loss x 1.40 for forced air furnace
Building and duct heat loss x 1.25 for heat pump
(07101113)