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Heat ‘batteries’ dramatically cut energy use
London, England - Heat storage tanks that can cut energy used for heating by 50-70%, and are becoming an increasingly profitable investment as energy prices shoot up.
Such high energy savings can be achieved thanks to the thermal properties of paraffin wax, used to capture as much as 10kWh in a storage tank with dimensions of 2x1x1m. As the paraffin melts it takes in large amounts of heat - melting down paraffin requires around four times the amount for melting ice. The heat is then released when it cools and returns to the solid state.