Hello, I am a new member located in eastern Ohio. I am a licensed HVAC contractor . However I am new to geothermal and think I know just enough to be dangerous . I am seeking advice based on experience, and data and greatly appreciate everyone's time and input. That being said I am considering doing my own geothermal system for my home. I would prefer to do most work myself obviously and save money and learn along the way for possible future installs. So to start I was thinking of doing a horizontal loop field because I have heavy equipment capable of digging 10'+deep. My land area is basically unlimited and pretty flat. My first concern is my soil conditions. I have maybe 18-24" of topsoil and then it turns to layers of shale . Is the shale going to allow acceptable contact / transfer? I would think fractured rock and moisture after backfill would be a good thing? Rock is a good conductor of heat ....I have many more questions but figured I'd start with that. Thanks!