Residence on the Truckee River in California Installed by Waterworks Technologies in Crystal Bay. The heating, cooling and domestic hot water system use a combination of geothermal heat pumps, with a large back up boiler system. This residence has an aggregate of in floor heating, fan coil cooling, snow melt and pool heating. The system consists of 3 - 199kbtu boilers, a 120kbtu heat pump and a 2 - 60kbtu heat pump. Recently added was 2 more 60kbtu heat pumps for future expansion.