Posted By kprosen on 04/12/2007 12:39 PM
The heat is supplied by an oil boiler that supplies hot water to base board radiators as well as domestic hot water. The boiler is rated at 80+% efficiency. I live on a two acre lot. Is it practical to use geotherm to either assist the existing boiler or replace the boiler?
Ken,
I would say no. First of all you aren't likely to get 180° hot water from GSHP. Second, a GSHP isn't going to be inexpensive.
Now, if you retrofitted radiant floor heat, and dumped the radiators, that would help. But, for the money, I think that you would be better served by increasing your insulation(if possible), and/or upgrading your boiler.