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The building also uses a ground-source heat pump connected to three 1,500-foot wells, which meets all the building's heating and cooling needs.
You need electricity to run the heat pump , but it's very energy efficient.
A heat pump converts this low grade energy to hot water which is then used for heating.
They can range from the simple sew-it-yourself, install-it-yourself window quilt systems up through complex, passive, solar gain controls intended to turn your house into an efficient heat pump .
Through this process, ocean circulation acts like a heat pump and determines our climate to a great extent.
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