Installing this ground loop was challenging due to the sloped hillside. You can see the soil contained a large amount of river rock which made for a tedious backfill process as well. We are often able to remove two separate heating systems in a home, connect the ductwork together, and install a single WaterFurnace geo unit. The Intellizone control plays a huge part in the ability to do this. This home is experiencing much less than half the heating bill from winters past.