REVIEWED BLD2024-0295+Energy_Calculations+3.4.2024_1.46.24_PM+4100905BLD2024-0295
simple Heating system size: wasnington 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 at
energycode@energy.wsu.edu or (360) 956-2042 for assistance.
Project Information Contact Information
LAWRENCE RESIDENCE H2D ARCHITECTURE + DESIGN
1217 11TH PL N 23020 EDMONDS WAY #113
EDMONDS, WA 98020 EDMONDS, WA 98020
Heating System Type: 0 All other Systems O Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions" RECEIVED
Design Temperature Mar 07 2024
Instructions Design Temperature Difference (AT) 46 DEVELLOOPMENTSERV'DES
Edmonds I DE. -ENT
� 1 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
ill-0.28 � I
Skylights
Instructions
Insulation
Attic
Instructions I
R-49
Single Rafter or Joist Vaulted Ceilings
Instructions I
No Vaulted Ceilings in this project.
Above Grade Walls (see Figure 1)
Instructions
R-21 Intermediate
Floors
Instructions
R-38 Fv IJ
Below Grade Walls (see Figure 1)
Instructions
R-21 Interior
Slab Below Grade (see Figure 1)
Instructions
No Slab Below Grade in this project.
Slab on Grade (see Figure 1)
Instructions I
No Slab on Grade in this project.
Location of Ducts
Instructions
No Ducts
Figure 1.
Above Grade
REVIEWED
465 BY
Conditioned Volume CITY OF EDMONDS
8.1 3,769
U-Factor X Area = UA
0.280 65 18.26
U-Factor
X Area =
UA
0.50
---
U-Factor
X Area =
UA
0.026
2,745
71.36
U-Factor
X Area
UA
---
319
U-Factor
X Area
UA
0.056
2,862
160.26
U-Factor
X Area
UA
0.025
3,064
76.61
U-Factor
X Area
UA
0.042
808
33.94
F-Factor
X Length
UA
0.000
---
F-Factor
X Length
UA
---
101
Sum of UA
Duct Leakage Coefficient
1.00
360.41
Envelope Heat Load 16,579 Btu / Hour
Sum of UA x AT
Air Leakage Heat Load 1,872 Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 18,451 Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 18,451 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 23,064 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
(07/01/13)