 |
 |
Exterior walls and ceilings have been strapped horizontally to limit thermal bridging |
 |
|
 |
 |
Basement, crawl space, and attic have all been brought into the conditioned envelope |
 |
|
 |
 |
All elements of mechanical system are within the conditioned envelope |
 |
|
 |
 |
 |
 |
Conditioned Area (sq. ft.) |
 |
5600 |
 |
3736 |
 |
|
 |
|
 |
 |
Housing Type (single family, multi-family, attached, detached, etc.) |
 |
SF/Detached |
 |
SF/Detached |
 |
|
 |
 |
 |
 |
 |
Slab Floors |
 |
R-10
XPS Foam Board |
 |
R-10 XPS
foam board |
 |
|
 |
 |
Foundation Walls |
 |
R-21
2 lb. Foam |
 |
R-22 Closed
Cell Foam |
 |
|
 |
 |
Frame Floors |
 |
R-60
.5 lb. Foam |
 |
R-67 Open
Cell Foam |
 |
|
 |
 |
Walls |
 |
R-29
2 lb. Foam |
 |
R-34.7 Open
Cell Foam |
 |
|
 |
 |
Vaulted Ceiling |
 |
R-58
.8 lb. Foam |
 |
R-61 Cellulose & CC foam |
 |
|
 |
 |
Flat Ceiling |
 |
N/A |
 |
R-65 Cellulose & CC foam |
 |
|
 |
 |
U-Value |
 |
.25 - .32 |
 |
.27-.34 |
 |
|
 |
|
 |
 |
 |
 |
Space Heating (primary only) |
 |
Closed Loop Geothermal |
 |
Closed Loop Geothermal |
 |
|
 |
Efficiency (HSPF, COP, etc.) |
 |
Partial COP 4.0,
Full COP 3.8 |
 |
COP 4.3 |
 |
|
 |
 |
AC Efficiency |
 |
Closed Loop Geothermal |
 |
Closed Loop Geothermal |
 |
|
 |
Efficiency (SEER, EER) |
 |
Partial EER 24.5,
Full EER 17.2 |
 |
EER 21.0 |
 |
|
 |
 |
Water Heating |
 |
Condensing Tankless |
 |
Nevien Tankless Water Heater |
 |
|
|
 |
|
 |
Flow Rate |
 |
64 - 120 cfm |
 |
500 cfm |
 |
|
 |
 |
Infiltration Rate |
 |
500 cfm |
 |
2.0 ACH50 |
 |
|
 |
 |
 |
|
 |
 |
Solar Thermal (DHW, space heating, etc.) |
 |
N/A |
 |
N/A |
 |
|
 |
|
 |
 |
 |
 |
Heating |
 |
53.9 ($3438) |
 |
13.3 ($847) |
 |
|
 |
 |
Cooling |
 |
6.4 ($407) |
 |
3.7 ($239) |
 |
|
 |
 |
Water Heating |
 |
24.5 ($47) |
 |
13.5 ($26) |
 |
|
 |
 |
Lighting & Appliances |
 |
40 ($1914) |
 |
36.6 ($1695) |
 |
|
 |
|
 |
 |
TOTAL |
 |
124.8 ($5806) |
 |
67.2 ($2807) |
 |
|
 |
|
 |