REVIEWED BLD2021-0812+Energy_Calculations+6.14.2021_1.41.44_AM+2246981Ri n9ngi-nsig
zampie meating bystemSize: Washington State 0� � v r ■ W ■
This heating system sizing calculator is based on the Prescriptive Requitemenis of the 20 io Washington State Energy Code (WSEC)
Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine C&0_dF1P_ 0NDS
DEVELOPMENT SERVI(
Please complete the green drop -downs and boxes that are applicable to your project. As you make selections in the drop -downs for each WMT!lWe
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.-
-- uumdut mroimauon _
Quantum Homes, Lot 4 Dante Palmaffy
7901 24oth St SW 12925 47th Dr SE, Everett, WA 98208
Edmonds, WA 425-345-2530
Heating System l ypc !, All Other Systems 0 Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions"
Design Tempt=raktrn
In!;utu;tion�
Ed ds Design Temperature Difference (,1T)
*, AT = Indoor (70 degrees) - Outdoor Design Temp
Conditioned Floor Area
lnstni0ions Conditioned Floor Area (sq ft)
6, ?
Average Ceiling Height
Conditioned Volume
Instruchon's Average Ceiling Height (ft)
9.0
47.925
Glazing and Door<:,
U-Factor
X Area =
UA
Iris tructions-
U oze
0.280
1,049
293.72
Skylights
U-Factor
X Area =
UA
Instrurtiona
0.50
---
Insulation
Attic
U-Factor
X Area =
UA
I IS tn1c t i<; it'•
a-ae
.
0.026
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
SPI ct R V, e
.
No selection
F 1.955
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
—t R V,r,:,.
� �
No selection
3,073
Floors
U-Factor
X Area
UA
R n
0.025
F 478
11.95
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
No selection
F 17314
Slab Below Grade (see Fraure n
F-Factor
X Length
UA
0.303F
17955
592.37
Slab on Grade (see Figure 1)
F-Factor
X Le�
UA
ia Select R-Vae
. ,
No selection
---
Location of Ducts
Instructions
"
Duct
Leakage Coefficient
Conditioned Space
♦
YMMWN�YININYNMYYIitI
1.00
Sum
of UA
898.04
Figure 1.
Above Grade
46
Envelope Heat Load 41,310
Btu / Hour
Sum of UA x \T
Air Leakage Heat Load 23,809
Btu / Hour
Volume x 0.6 x \T x 0.018
Building Design Heat Load 65,119
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 65,119
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 91,166
Btu / Hour
Buildino and duct heat loss x 1, 40 for forced air furnace
Building and duct heat loss x 1.25 for heat pump
(07101113)