Specs are for a 12 ton Unico heating/cooling system (4 handlers) installed in a 5500 sq. ft. older home about 50 miles N. or Philly. Option one is geo, which brings along a $20-$24k drilling expense. Other option is to use standard heat pumps, saving me the drilling. Equipment and labor save for drilling is pretty much the same for either.
I'd love to go geo...but I'm wondering what my actual year over year savings would be v. standard heat pump. Is the $24k expense worth the effeciency?