Groundloop Here is their website: http://www.groundloop.com/ They only install & maintain Geothermal systems. So they know their stuff. They are Waterfernice certified installers. No complaints. They even handled mailing the Federal and State rebates. Where are you located?
Well If you are interested in the Series 7 from water furnace, then I would suggest that you go to http://www.waterfurnace.com/dealer_locator.aspx?lat=39.63953756436671&lng=-83.7773448228836 for authorized installers