Who puts in a system like this? It costs an absolute fortune to install one of these and a nearly complete waste if all it can do is circulate a bit of ground-t

Who puts in a system like this? It costs an absolute fortune to install one of these and a nearly complete waste if all it can do is circulate a bit of ground-temp water around the house. The typical thing to do is to connect the ground loop to a heat pump which greatly increases the amount of heat transfer (in either direction).