BLD2020-1292+Energy_Calculations+11.24.2020_2.01.41_PMBLD2020-1292 RECEIVED
Simple Heating System Size: vraa hillrytv1r State Dec 04 2020
This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 Washington State Energy Code (WSEC) and AGtAc OF EDMo IDS
Manuals J and S. This calculator will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determifi@Y 61f NT s VICES
loads. THE IN T
Please fill out all of 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 call the WSU Energy Extension
Program at (360) 956-2042 for assistance.
Project Information Contact Information
Mueller Addition Mueller, Jake
20124 81st Ave W 20124 81st Ave W
Edmonds, WA 98026 Edmonds, WA 98026
Heating System Type: ® 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 A = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
204
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
8.0
1,632
Glazing and Doors
U-Factor
X Area -
UA
Instructions
u-0.30
�
� 0.300
74
22.20
SkVlights
U-Factor
X Area -
UA
Instructions
0.50
0
---
Insulation
Attic
U-Factor
X Area =
UA
,structions R-38 Advanced
0.026
194
5.04
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions
No Vaulted Ceilings in this project.
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
R-21 Intermediate
I �
0.056
246
13.78
Floors
U-Factor
X Area
UA
Instructions
No Floors above unconditioned spaces.
�
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
No Below Grade Walls in
�
0.028
0�
this project.
Slab Below Grade isee moure ti
F-Factor
X Length
UA
Instructions
�
0.303
0�
No Slab Below Grade in this project.
Slab on Grade (see Figure n
F-Factor
X Length
UA
Instructions
0.540
41
22.14
R-10 Perimeter
Location of Ducts
Instructions
Duct Leakage Coefficient
Unconditioned Space
1.10
Sum of UA
63.16
Figure 1.
Above Grade
46
Envelope Heat Load
2,905 Btu/Hour
Sum of L A X AT
Air Leakage Heat Load
811 Btu / Hour
VolumeX 0.6XATX.018
Building Design Heat Load
3,716 Btu / Hour
Air Leakage + Envelope Heat Loss
Building and Duct Heat Load
4,088 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
5,723 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)
-E
-E
Table R402.1.1 Footnotes
For SI: 1 foot .= 304.8 mm, ci .= continuous insulation, int .= intermediate framing.
a R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which is
less than the label or design thickness of the insulation, the compressed R-value of the insulation from
Appendix Table A101.4 shall not be less than the R-value specified in the table.
b The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
"10/15/21.+TB" means R-10 continuous insulation on the exterior of the wall, or R-15 on the continuous
insulation on the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the
basement wall at the interior of the basement wall. "10/15/21.+TB" shall be permitted to be met with R-13
cavity insulation on the interior of the basement wall plus R-5 continuous insulation on the interior or exterior
of the wall. "10/13" means R-10 continuous insulation on the interior or exterior of the home or R-13 cavity
insulation at the interior of the basement wall. "TB" means thermal break between floor slab and basement
wall.
d R-10 continuous insulation is required under heated slab on grade floors. See R402.2.9.1.
e There are no SHGC requirements in the Marine Zone.
f Reserved.
g Reserved.
b Reserved.
The second R-value applies when more than half the insulation is on the interior of the mass wall.
Reserved.
k For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38.
Reserved.
m Int. (intermediate framing) denotes standard framing 16 inches on center with headers insulated with a
minimum of R-10 insulation.
Table R402.1.3 Footnote
a Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source or as
specified in Section R402.1.3.