REVIEWED BLD2021-0809+Energy_Calculations+6.14.2021_1.25.34_AM+2246963BLD2021-0809
simple meating System Size: Washington 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.
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Quantum Homes, Lot 2 Dante Palmaffy DEPARTMENT
7901 24oth St SW 112925 47th Dr SE, Everett, WA 98208
Edmonds, WA 425-34S-2530
Hu' {f nq 'may i ,� ; !.t i; '0' All Other Systems (D Heat Pump
To see detailed instructions for each section. place your cursor on the word "Instructions"
Design Temperature Difference (:\T) 46
r i mo �d ' AT = Indoor (70 degrees) - Outdoor Design Temp
i,
Conditioned Floor Area
3-°-.,,. Conditioned Floor Area (sq ft) 4,880
Average Ceiling Height
€natr"(Awnt; Average Ceiling Height (ft)
Glazing and Dour.
Instructions
Skylights
lnstrucUmnS
Insulation
Attic
tnstruct€ul}s �"
R-49
�
_
Single Rafter or Joist Vaulted Ceilings
S IP t R ,,
Above Grade Walls (see Figure 1)
Select R-Value
� `^
Floors
Instructis�its -
R38
Below Grade Walls (see Figure 1)
instruction's
i Select R-value
� -��
Slab Below Grade (see Figure 1)
"R-10 Fully insulated
�
Slab on Grade (see Figure 1)
)nstru,c ions
Select R Value
•
Location of Ducts
Instructions i, ,
" Conditioned Space
Figure 1.
Ab— Grade i
Conditioned Volume
8.8
42,944
U-Factor
X Area =
UA
0.280
1,128
315.84
U-Factor
X Area =
UA
0.50
---
U-Factor
X Area =
UA
0.026
U-Factor
X Area
UA
No selection
1,977
U-Factor
X Area
UA
No selection
2,688
U-Factor
X Area
UA
0.025
154
3.85
U-Factor
X Area
UA
No selection
864
F-Factor
X Length
UA
0.303
1,931
585.09
F-Factor
X Length
UA -
No selection
Sum of UA
Duct Leakage Coefficient
1,00
904.78
Envelope Heat Load 41,620
Btu / Hour
Sum of UA x \T
Air Leakage Heat Load 21,335
Btu / Hour
Volume x 0.6 x \T x 0.018
Building Design Heat Load 62,955
Btu / Hour
Air leakage + envelope heat loss
Building and Duct Heat Load 62,955
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 88,136
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)