REVIEWED-BLD2023-0474+WSEC+4.4.2023_8.11.41_PM+3463510BLD2023-0474
REVIEWED
BY
CITY OF EDMONDS
BUILDING DEPARTMENT?
simpie mating system size: tnfasnington state ......................................
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA
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
energycode@energy.wsu.edu or (360) 956-2042 for assistance.
Project Information Contact Information
ADDITION & REMODEL SANCHEZ & McPHILLIPS RESIDENCE
O All h • Heat Pm
Heating System Tm
ype. a er Systes ° p RECEIVED
To see detailed instructions for each section, place your cursor on the word "Instructions"
Design Temperature Apr 18 2023
Instructions Design Temperature Difference (AT) 46
Edmonds NDS
AT = Indoor (70 degrees) - Outdoor Design Temp CITY E
DEVELOPMENT
SERVICES
DEPARTMENT
A' -f Buildina
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
Average Ceiling Height
Instructions Average Ceiling Height (ft)
Glazing and Doors
Instructions
U-0.28
Skylights
Instructions
Insulation
Attic
Instructions R-49
Single Rafter or Joist Vaulted Ceilings
Instructions R-38 Vented
Above Grade Walls (see Figure 1)
Instructions R-21 Intermediate
262
Conditioned Volume
8.5
2,227
U-Factor
X Area =
UA
0.280
65
18.20
U-Factor
X Area =
UA
0.50
10
5.00
U-Factor
X Area =
UA
0.026
0�
Floors
Instructions
R-38
Below Grade Walls (See Figure 1)
Instructions No Below Grade Walls in this project.
Slab Below Grade (see Figure 1)
Instructions
No Slab Below Grade in this project. �
molk—
Slab on Grade (see Figure 1)
Instructions
No Slab on Grade in this project.
Location of Ducts
Instructions
Conditioned Space
Figure 1.
Above Grade
U-Factor X Area
0.027 262
U-Factor X Area
0.056 589
U-Factor
X Area
0.025
262
U-Factor
X Area
0.028
0�
F-Factor
X Length
0.303
0�
F-Factor
X Length
Sum of UA
UA
7.07
UA
32.98
UA
6.55
UA
Duct Leakage Coefficient
1.00
UA
UA
69.81
Envelope Heat Load 3,211
Btu/Hour
Sum of UA x AT
Air Leakage Heat Load 1,106
Btu/Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 4,318
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 4,318
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 5,397
Btu / Hour
Buildinq and duct heat loss x 1.40 for forced air furnace
Buildinq and duct heat loss x 1.25 for heat pump
(07101113)