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The winner of the 2008 EVHA People's Choice is:
 Stitt
Energy Systems, Inc.
 
Category: Custom
Climate: Moderate
Location: Springfield, Missouri
Square Footage: 3,718 s.f.
Construction cost: $167 per s.f.
Energy Features:
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Foundation:
R-7.5 rigid foam insulated basement walls with R-5 rigid foam under basement
slab
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Foundation:
R-22 Insulating Concrete Form basement
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Exterior Wall Construction:
2x4 @16" o.c. with 2x2 cross-wise
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Wall Insulation:
R-20 soy-based spray foam
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Rim Joist Insulation:
R-20 soy-based spray foam
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Roof Construction:
Raised-heel trusses @ 24" o.c.
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Ceiling Insulation:
R-30 soy-based spray foam at roofline
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Windows:
Low-e, argon-filled vinyl; U-0.29 to 0.31; SHGC 0.22 to 0.30
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HVAC:
78% efficient wood fireplace system; 17.5 SEER, 8.4 HSPF air source heat pump;
energy recovery ventilator
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Ducts:
All ducts in conditioned space and sealed with mastic and foil tape
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Water Heating:
40 s.f. flat plate solar collector with electric tank auxiliary and PV-powered
pump
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Lighting:
100% fluorescent (43% dedicated fluorescent fixtures)
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Appliances:
ENERGY STAR refrigerator, dishwasher, chest freezer, and washer
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Duct Leakage Test:
0 CFM to exterior at 25 Pa; 0 CFM total at 25 pa
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Blower Door Test:
1.17 ACH50
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HERS Index:
38 (with photovoltaic)
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Innovative Features: 3.1 kW photovoltaic system;
radiant barrier roof decking; tubular skylights; programmable thermostat;
advanced framing techniques including 2-stud corners, ladder blocking, and
cross bracing; passive solar design
Thank you for voting. For more information about the EVHA and this year's
winners, download the 2008 EVHA Winner Magazine.
The winner of the 2007 EVHA People's Choice is:
 Fireside
Home Construction
Category: Custom
Climate: Cold
Location: Ann Arbor, Michigan
Square Footage: 3,453 s.f.
Construction cost: $198 per s.f.
Energy Features:
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Foundation:
R-7.5 rigid foam insulated basement walls with R-5 rigid foam under basement
slab
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Wall Construction and Insulation:
R-26 Structural Insulated Panels; R-28 and R-42 spray foam at 2x6 walls
(laundry) and band joist
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Roof Construction and Ceiling Insulation:
R-43 SIPs and R-51 blown cellulose (laundry)
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Windows:
Low-e, gas-filled; U-0.28 to 0.33; SHGC 0.33 to 0.43
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HVAC:
Geothermal heat pump with 27 SEER rating; 80% efficient heat recovery
ventilator
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Ducts:
All in conditioned space; 8 returns
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Water Heating:
93 EF Electric tank water heater
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Lighting:
33% permanent fluorescent; 67% CFL
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Blower Door Test: 1.24 ACH50
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HERS Index:
58 HERS index
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Innovative Features: Programmable thermostat;
Whole-house ventilation exhausts baths
 The
winner of the 2006 EVHA People’s Choice is:
Stitt Energy Systems, Inc.
 
Category: Custom
Climate: Moderate
Location: Springdale, Arkansas
Square Footage: 5,492
Energy Features:
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Foundation:
R-22 Insulating Concrete Form foundation wall
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Wall construction and insulation:
R-24 Structural Insulated Panels
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Roof construction:
Raised heel trusses at 24" o.c.
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Ceiling insulation:
R-30 Fiberglass Batt Insulation
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Windows:
Double pane, low-e, gas filled; U-0.31; SHGC 0.31-0.40
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HVAC:
8.1 HSPF/SEER 14 heat pump
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Ducts:
R-6 flex duct; 100% in conditioned space; sealed with mastic and aluminum tape
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Water heating:
40 s.f. flat plate collector with 10 watt photovoltaic pump; electric
resistance backup
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Lighting:
75% permanent fluorescent fixtures and compact fluorescent lamps. 25%
incandescent fixtures. Solar orientation and open houseplan, combined with
windows on north and east provide natural daylight.
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Appliances:
ENERGY STAR-labeled refrigerator, washer, and dishwasher
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Blower Door Test:
1.1 ACH50
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HERS rating:
91.1
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Innovative features: Passive solar orientation,
builder-developed radiant barrier air channel system to reduce attic
temperature, 78% efficient fireplace, programmable thermostat, low flow
plumbing fixtures, demand-activated hot water recirculation
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