[Greenbuilding] Green real estate market

[Paul Newby]

> One thing I have noticed after talking to several General Contractors about
> geothermal systems is that there is not a lot of good information out there
> about reliability and performance.  10 years seems to be average that they
> give these systems to last before requiring major repairs. 

That's surprising.  Did they provide any details or evidence for
this assertion?

Thanks,
Paul N.