I've got a guy coming out tomorrow morning to discuss the viability of going geo, using the north pond as the heat sink. I already understand that one of his first steps would be to measure/evaluate my home in order to properly size the system.

What else should I expect on this first meeting? Any suggestions would help, as I've no real idea how this all works...shooting blind here.

On the bright side, I found him on the Iowa IGSHPA (Ia Ground Source Heat Pump Association) database. Hopefully, that means he's good...don't know, though.


In a lifetime, the average driver will honk 15,250 times. My wife figures I'm due to die any day now...