I have been searching geothermal options and stumbled onto this and was curious what the opinions are about it. I am curious from homeowner level to professional level feel free to throw the thoughts out!

I think it looks like a pretty good idea but I wonder how much maintenance would be involved and cost difference between a dx geothermal and this setup. I do think it might be a very good solution for the person thinking about dx geothermal in a area with soil that would erode the copper coil.

thanks,

Bob