REVIEWED BLD HEATING SIZING FORMRECEIVED
Simple Heating System Size: Washington State BLD2021-0929 Jul 26 2021
This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and Ar r MON
'IIEDS LOPME SERVICES
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling IoadsEPAR MENT
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
FLYNN RESIDENCE 1H2D ARCHITECTURE & DESIGN
8229 TALBOT RD, EDMONDS, WA 98026 HEIDI HELGESON: 206-542-3734 7M
tflvnn(olsoundmarkewealth.com HEIDI@H2DARCHITECTS.COM
Heating System Type: O 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 AT = Indoor (70 degrees) - Outdoor Design Temp
Are--13uilding
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
3,276
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
9.01
29,482
Glazing and Doors
U-Factor
X Area =
UA
Instructions
u-0.25
1 0.250
1,347
336.70
Skylights
U-Factor
X Area =
UA
Instructions
0.50
u
---
Insulation
Attic
U-Factor
X Area =
UA
Instructions R_qg
0.026
193
5.02
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions
R-38Vented
0.027
2,097
56.61
Above Grade Walls (see Figure n
U-Factor
X Area
UA
Instructions L R-21 Intermediate
�l 0.056
2,594
145.29
Floors
U-Factor
X Area
UA
Instructions
R-38
�
I 0.025
`�l
20
0.49
Below Grade Walls (see Figure n
U-Factor
X Area
UA
Instructions R-21 int plus R-5 ci
�� 0.028
935
26.17
Slab Below Grade (see Figure v
F-Factor
X Length
UA
Instructions
No Slab Below Grade in this project.
�
mmm
0.303
i
---
Slab on Grade (see Figure v
F-Factor
X Length
UA
Instructions
No Slab on Grade in this project.
�
� ---
Location of Ducts
Instructions
Duct Leakage Coefficient
Conditioned Space
1.00
Sum of UA
570.28
Figure 1.
Above Grade
46
Envelope Heat Load 26,233
Btu / Hour
Sum of UA x AT
Air Leakage Heat Load 14,647
Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 40,880
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 40,880
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 51,100
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
(07101113)