REVIEWED BLD2021-0552+WSEC+4.16.2021_2.29.00_AM+2149000RECEIVED
BLD2021-0552 A _ _ . „ ---I
simple I-leating system s¢e: wasnington state hN1 I
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Wasitiiiytvi, State Erieiyy Code (vVSEC) and A&*itF
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cM rffhV
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 Contact Information
Erica Kalapaca IFelipe Irizarry
9033 217TH ST SW, EDMONDS, WA 98026 contactCa@modernoengineering.com
425-999-4230
Heating System Type: OO All Other Systems O Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions"
Design Temperature
Instructions Edmonds Design Temperature Difference (AT) 46
J
AT =Indoor (70 degrees) -Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
Average Ceiling Height
Instructions Average Ceiling Height (ft)
Glazing and Doors
Instructions
U-0.30
Skylights
Instructions
Insulation
Attic
Instructions LR
49
Single Rafter or Joist Vaulted Ceilings
Instructions No Vaulted Ceilings in this project.
Above Grade Walls fsee Figure 11
Instructions
R-211ntermediate
�
Floors
Instructions
No Floors above unconditioned spaces.
�
Below Grade Walls (see Figure 1)
LJ Select R-value
Slab Below Grade fsee Figure 1)
R-10 Fully insulated
Slab on Grade (see Figure 1)
Instructions
R-10 Fully Insulated
� J
Location of Ducts
Instructions
No Ducts
�
Figure 1.
Above Grade
308
Conditioned Volume
8.0
2,464
U-Factor
X Area = UA
0.300
48 14.40
U-Factor
X Area = UA
0.50
---
U-Factor X
Area =
0.026
308
U-Factor X
Area
U-Factor X
Area
0.056
329
U-Factor X
Area
U-Factor X
Area
No selection
0
F-Factor X
Length
0.303
F-Factor X
Length
0.360
50
Sum of UA
Duct Leakage Coefficient
1.00
UA
8.01
UA
UA
18.42
UA
UA
UA
UA
18.00
58.83
Envelope Heat Load
2,706
Btu / Hour
Sum of UA x AT
Air Leakage Heat Load
1,224
Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load
3,930
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load
3,930
Btu / Hour
Ducts in unconditioned sDace: sum of buildina heat loss x
1.10
Ducts in conditioned space: sum of building heat loss x 1
Maximum Heat Equipment Output
5,503
Btu / Hour
Buildina and duct heat loss x 1.40 for forced air furnace
Buildina and duct heat loss x 1.25 for heat DumD
;ES
(07101113)