Sorry but no, the explination the other tech is giving me is that the ground is storing the energy for the next season! That cant be in the picture I have of how a geothermal loop works! My thought on it is that its a constant temperature in the ground and that due to the length of loop and contact with the earth that the btu transfer is due to the constant temperature. And that is where the energy savings is, kinda like operating an air to air heatpump in 55-60 degree outdoor temperatures. His theory is that the system is running in the winter and storing the energy from the loop for the summer months, and vice versa in the summer. His explination is that the earth around the loops is now like a storage vault, and that from season to season they are reusing the energy they are putting into the vault if you will! I dont see any similarity between what his discription is and what my understanding is.. This tech also tells everyone around us that a vertical loop is the only way a geo-thermal loop can work. I have seen several horizontial loops put in and work effeciently, not to mention open loops and pond loops as well. I run into the arguement that here in Kentucky that the geography will not allow a horizontal loop to work properly. I have no idea of where to look to find info to back the horizontial design!