REVIEWED BLD-BLD2022-0616+WSEC+5.10.2022_3.08.45_PM+2860461RECEIVED
Simple Heating System Size: Washington State BLD2022-0616 May 11 2022
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Wash.i.ngton. State Energy rode ('NSEC) and ACGAY of ED ONDS
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cool We EN ERVICE
LRTAA NT
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
KUNKEL RESIDENCE H2D ARCHITECTURE & DESIGN
752 WALNUT ST, EDMONDS, WA98020 HEIDI HELGESON: 206-542-3734
H EIDI(&H2DARCHITECTS.COM
Heating System Type: 0 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 W AT = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
2,386
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
8.0
19,087
Glazing and Doors
U-Factor
X Area =
UA
Instructions
U-0.25
.
0.250
407
101.75
Skylights
U-Factor
X Area =
UA
Instructions
0.50
34
17.00
Insulation
Attic
U-Factor
X Area =
UA
Instructions L R_49
0.026
193
5.02
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
'"-" _-"-"- R-38 Vented
0.027
2,097
56.61
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions L21 Intermediate
�I
0.056
1,574
88.16
Floors
U-Factor
X Area
UA
Instructions
0.025
593
14.83
R-38
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions R_zt int plus R-5 ci
0.028
Slab Below Grade (See Figure 1)
F-Factor
X Length
UA
Instructions
No Slab Below Grade in this project.
�
0.303
---
Slab on Grade (seeFioure a
F-Factor
X Length
UA
Instructions `
� I No Slab on Grade in this project.
Location of Ducts
Instructions
Duct Leakage Coefficient
Conditioned Space
1.00
Sum
of UA
283.37
Figure 1.
Above Grade
46
Envelope Heat Load 13,035
Btu/Hour
Sum of UA x AT
Air Leakage Heat Load 9,483
Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 22,517
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 22,517
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 28,147
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)