Geothermal and ICFs
We're building a house with ICFs and I'm really interested in geothermal. Our builder thinks geothermal will be overkill since the house will be more efficient than if built with 2x4s, and we won't need as big of an HVAC anyway. He thinks it will take a lot longer to recoup the additional cost. I still like the idea of geothermal. Any opinions would be greatly appreciated!