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EERE » BTO » Building America » Solution Center Home » Image Gallery » Right - An ultra-efficient (COP 5.7) ground source heat pump provides hot water to an air coil in the central air handler which uses a variable-speed electrically commutated fan motor to distribute conditioned air to the home’s ducts.

Right - An ultra-efficient (COP 5.7) ground source heat pump provides hot water to an air coil in the central air handler which uses a variable-speed electrically commutated fan motor to distribute conditioned air to the home’s ducts.