Heating_System_Sizing_Worksheetbimme Heatina bmem bite: wasnlnaton State
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
PAUST RESIDENCE H2D ARCHITECTURE & DESIGN
825 MAIN STREET, EMONDS, WA 98020 1HEIDI HELGESON: 206-542-3734 71
KIRSTEN.PAUST@FORTIVE.COM HEIDI@H2DARCHITECTS.COM
Heating System Type: O All Other Systems ® Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions".
Design Temperature
Instructions Design Temperature Difference (AT)
Etlmands AT = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
3,465
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
8.0
27,718
Glazina and Doors
U-Factor
X Area =
UA
Instructions
L u-azs
. 1
0.250
1,090
272.53
Skylights
U-Factor
X Area =
UA
Instructions
0.50
Insulation
Attic
U-Factor
X Area =
UA
Instructions R-49
V
0.026
673
17.49
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions R-38 Vented
V
0.027
454
12.25
Above Grade Walls (see Figure p
U-Factor
X Area
UA
Instructions
R-21 Intermediate
.
0.056
2,584
144.70
Floors
U-Factor
X Area
UA
Instructions
No Floors above unconditioned spaces.
r
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions NO Below Grade Walls in this project.
0.028
Slab Below Grade (see Figure a
F-Factor
X Length
UA
Instructions
No Slab Below Grade in this project.
V i
0.303
---
Slab on Grade (see Figure 1)
F-Factor
X Length
UA
Instructions
No Slab an Grade in this project.
V J
---
Location of Ducts
Instructions
Duct Leakage Coefficient
Conditioned Space
•
1.00
Figure 1.
Above Grade
46
Sum of UA
446.97
Envelope Heat Load
20,561 Btu / Hour
Sum of UA X AT
Air Leakage Heat Load
13,770 Btu / Hour
VolumeX 0.6XATX.018
Building Design Heat Load
34,331 Btu / Hour
Air Leakage + Envelope Heat Loss
Building and Duct Heat Load
34,331 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
42,913 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)