Reference Projects

From ultra-modern to 19th Century historic homes, geothermal creates comfort and efficiency. Here are a few examples:


Village Green Homes, Purcellville, VA


When Robert Lauten, of Lauten Construction, set out to build the first homes in Loudoun County to meet the US Green Building Council’s LEED (Leadership in Energy and Environmental Design) standard, he turned to REHAU. Lauten wanted to offer homeowners the benefits of living in sustainable, energy saving homes that would reduce their carbon footprint. Offsetting the energy consumption of traditional HVAC systems was critical.


REHAU’s geothermal ground loop heat exchange system has the potential to deliver 9 million Btu’s of energy, per year, offering a carbon offset of almost 3 million metric tons compared to a traditional energy source.


RAUGEO double U-bends were installed in two vertical boreholes, 300 ft (91.4 m) deep. A heat transfer fluid circulates through these pipes, taking heat from the home’s HVAC system during cooling, then dispersing it in the earth. When heating, it works in reverse, collecting naturally stored heat and delivering it to the home.


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Old Town Alexandria c.1830 Home

For Harry and Maria Hopper, owning of a piece of architectural history just miles from the nation’s capital is both exciting and challenging. Any upgrades to the home, which is on the historic register, must align with preservation society guidelines.

"We realized in the initial years of living in our Old Town home that this was going to be a challenge for us when it came to maintaining indoor comfort, and that ultimately we would need to compensate for lost heating and cooling with a highly efficient HVAC system upgrade.”

Because the Hoppers have a geothermal heat pump system in their farmhouse in rural Virginia, they were already familiar with the benefits and had hoped to retrofit a geothermal-driven HVAC system into their Old Town home as well. That's where the REHAU RAUGEO™ geothermal ground loop system and contractor Air Cool & Heating Systems came in.
 

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REHAU MONTANA®ecosmart house


A residential modeling and construction project, the ecosmart house demonstrates the potential for maximized energy efficiency and occupant comfort by combining the latest sustainable building systems.


The home is LEED certified, was recognized as a Green Builder Home of the Year and has received an "Engineering Excellence" award, as well. 


Take a video tour of the home here (1:57)



Virginia Tech's LUMENHAUS


As an entry in the U.S. Department of Energy’s 2009 Solar Decathlon, LUMENHAUS is a zero-energy home. It epitomizes a “whole building design” construction approach in which all the home's components and systems have been designed to work together to maximize user comfort and environmental protection.


“We were excited to work with the LUMENHAUS team in providing an integrated system that could demonstrate the efficiency advantages of a radiant heating system when coupled with a geothermalground loop heat exchange system," Dietrich said. “It’s been rewarding to continue our work alongside this group, especially as we realize we’re helping educate those that can make a true impact within tomorrow’s building community.”


Read the whole story.





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