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The EarthLinked%26#174; heat pump water heating system is a hybrid system that combines a high-efficiency ground-source heat pump with a standard commercial water heater tank to work in tandem to meet high-volume water heating needs. The ground-source system heats water up to 110%26#176; to 120%26#176;F, which can then be topped off by traditional gas or electric water heaters to any desired higher temperature. The unit uses standard heat pump components and patented refrigerant flow controls. The system is connected to refrigeration-grade tubing that is placed in direct contact with the renewable heat source in the upper 100 feet of the earth%26#8217;s surface.
