DNS BLD2022-0155+Energy_Calculations+2.6.2022_11.08.00_AM+2664314BLD2022-0155 RECEIVED
simple ileating system size: wasningion 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 determ
cooling loads.
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.
b 18 2022
TY OF EDMONDS
LOPMENT SERVICES
DEPARTMENT
Project Information Contact Information
22624 105TH AVE W ROB MICHEL 206-930-2445
EDMONDS WA 98020 rwmichell@me.com
Heating System Type: O All other systems Heat Pump REVIEWED
To see detailed instructions for each section, place your cursor on the word "Instructions" CITY OF EDMONDS
Design Temperature
Instructions Design Temperature Difference (AT) 46
Edmonds AT = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft) 577
Average Ceiling Height
Instructions Average Ceiling Height (ft)
Glazing and Doors
Instructions - I
U-0.24 JI
Skylights
Instructions
Insulation
Attic
Instructions � R-49
Single Rafter or Joist Vaulted Ceilings
`I Select R-Value -
Above Grade Walls (see Figure t)
Instructions
R-21 Intermediate El
Floors
Instructions
Select R-Value El
4
Below Grade Walls (see Figure 1)
Instruction
Select R-value
Conditioned Volume
8.0
4,616
U-Factor
X Area =
UA
0.240
140
33.60
U-Factor
X Area =
UA
0.50
F__�
---
U-Factor
X Area =
UA
0.026
577
15.00
U-Factor
X Area
UA
No selection
---
U-Factor
X Area
UA
0.056
1,152
64.51
U-Factor
X Area
UA
No selection
0
---
U-Factor
X Area
UA
No selection
Slab Below Grade (see Figure p F-Factor X Length UA
Instructions No selection I ---
Select conditioning
Slab on Grade (see Figure1) F-Factor X Length UA
Instructions 0.540 F 72 38.88
R-10 Perimeter
Location of Ducts
Instructions Duct Leakage Coefficient
IFNo Ducts Ell 1.00
Sum of UA 151.99
Fi ure 1.
Above Grade
Envelope Heat Load 6,992 Btu / Hour
Sum of UA x AT
Air Leakage Heat Load 2,293 Btu / Hour
Volume x 0.6 x AT x 0.018
Building Design Heat Load 9,285 Btu / Hour
Air leakaqe + envelope heat loss
Building and Duct Heat Load 9,285 Btu / Hour
Ducts in unconditioned space: sum of buildina heat loss x 1.10
Ducts in conditioned space: sum of building heat loss x 1
Maximum Heat Equipment Output 11,606 Btu/Hour
Building and duct heat loss x 1.40 for forced air furnace
Buildina and duct heat loss x 1.25 for heat Dump
(07101113)