REVIEWED BLD BLD2021-0235+heating Energy_Calculations+3.18.2021_11.55.58_AM+2099632REVIEWED
Simpl Heating System ashington State
This he ing system sizing calcul i based on the Prescriptive
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Please mpletlle the green drop -downs and boxes that are applic,
values II be calculated for you. If you do not see the selection yc
BLD2021-0235 RECEIVED
Mar 30 2021
uirements of the 2018 Washington State Energy Code (WSEC) and A00Pd6lmmmMl
r sizing cooling systems should be used to determine cooling IoadSIDEVELOPMENT SER
DEPARTMENT
to your project. As you make selections in the drop -downs for each section, some
:ed in the drop -down options, please contact the WSU Energy Program at
Project Information Contact Information
1OHNTRANG 10HNTRANG
23129 74th AVE West EDMONDS, WA 98026 206-227-1031
iohntrana2m(alvahoo.com 1W
Heating System Type: O All Other Systems 0 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
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
1,883
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
9.5
17,889
Glazing and Doors
U-Factor
X Area =
UA
Instructions
u-oso
'.
0.300
a
884
265.20
Skylights
U-Factor
X Area =
UA
Instructions
0.50
---
Insulation
Attic
U-Factor
X Area =
UA
Instructions R-49
0.026
2,464
64.06
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions
Select R-value
�
No selection
---
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
0.056
3,868
216.61
R-21 Intermediate
�
Floors
U-Factor
X Area
UA
Instructions R-11
0.029
1,883
54.61
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
Select R-value
�
No selection
---
Slab Below Grade (see Figure v
F-Factor
X Length
UA
Instructions
Select conditioning
�
No selection
---
Slab on Grade (see Figure 1)
F-Factor
X Length
UA
Instructions
Select R-Value
�
No selection
---
Location of Ducts
Instructions
Duct Leakage Coefficient
Conditioned Space
1.00
Sum of UA
600.48
Figure 1.
Above Grade
46
Envelope Heat Load 27,622 Btu / Hour
Sum of UA x AT
Air Leakage Heat Load 8,887 Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 36,509 Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 36,509 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 45,636 Btu / Hour
Building and duct heat loss x 1.40 for forced air furnace
Buildinq and duct heat loss x 1.25 for heat pump
(07101113)