Ann Arbor - GreenHome Institute

This home dramatically reduces it’s HVAC energy requirements by using airtight building principles. This home utilized geothermal forced air cooling and geothermal hydronic heating to further reduce HVAC consumption.
-Whole house HEPA filtration system
-Heat Recovery Ventilation System
-Energy Star Lighting and Appliances
-Advanced Building Envelope Techniques
-Sustainable Building Materials

“We achieved exemplary performance in landscape design by
greatly reducing irrigation needs. We used all drought tolerant
species and grasses and installed a rainwater harvesting system.”

David Eifrid of Greenlife Building LLC,
acted as LEED AP and Team Captain on
this project. Alexandar V Bogaerts and
Associates, P.C were the Architects,
Dave Moran of Michigan Heat LLC was
the Green Rater. Steve Pozzi was the
superintendent with Trowbridge
Homes. Michigan Energy services were
the HVAC installers and David
Czesewski assisted with the submittals.

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The Nautilus House sprung from a need to fix a leaky roof, and a vision for energy and water independence on a beautiful wooded building site. Form follows function in this building designed to capture sunlight, water, and air currents. Like a
nautilus, it unfolds in an organic shape spiraling upward and outward on the original foundation, with existing materials and spaces re-inventing themselves within and around the structure. The owner, architect and builder worked together to
create a unique vision of home that will become Michigan’s second LEED Platinum residential remodel.

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All water from house collected and re-used. 600 gallon tank for a exterior shower on one side, and a 400 gallon recycled grain hopper on the other side. The shower can also be used to water plants, as can the grain hopper, and both overflow to rain gardens on the lot. The house recycles the heated air radiantly through an advanced duct system Energy Recovery Ventilator. The form and openness of the home also take advantage of another product of solar energy – wind – to create convective currents that cool the home passively. A 4 kW Solar Photovoltaic’s system with Sharp fixed panels and a Sunny Boy inverter.

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