I was quoted $7000 for the drilling holes, and system loop alone. Then an additional $6000 for the heatpump unit and associated connection work to my air handler. The only thing the oil furnace would really be used for would be to heat the domestic water. The contractor did an anaylsys and calculated the payback to be 4yrs based on what were paying in electric for the AC and heating oil overages vs what we would use with the geo
unit. Still I have a hard time thinking of 13 grand, however the system is maintaince free other than a yearly cleaning of the heat pump.
its all a crap shoot, coal, wood, geo thermal
, solar.... are we gonna save money? yes of course, but i'm seeing more and more that Coal is still the way to go.....