"maxine in ri" > wrote

> Our furnace is nearing replacement age. I looked into geothermal heat
> exchange, and even with a well already on the property (not used),
> it'll run us around $30,000. A new oil or gas furnace runs $6-8,000.
> We'd save about $1,500 per year with the former, at current prices.
> The latter would save us about $300 per year at the higher end of the
> price range for a high-efficiency burner.

I don't know about where you live, but I remember reading
that you get a substantial rebate for the geothermal installation.
Might be worth checking out before you decide.

nancy