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Geothermal FAQ General The System Costs Installation / Building Environment / Climate View Geothermal FAQ (PDF Document - 623k)

Installation / Building (Mouse Over question for the answer) Where can these systems be installed? Can geothermal systems be installed in retrofit situations? Can geothermal systems be used with forced air distribution? How far apart are the trenches spaced in a horizontal loop system? How far are the boreholes in a vertical loop system spaced? How is the system sized?

Useful Links IGSHPA DSIRE US Dept. of Energy Modern Home Heating

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