Mr Rogers's home features a heat-recovery ventilator a device in his basement that filters incoming air and exchanges heat between incoming and outgoing air.

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KHIC, also widely known as Hanjung, had been in the Gulf since 1986, providing heat-recovery steam generators for the Jebel Ali thermal power plant in the United Arab Emirates.

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The technology in question is KERS (kinetic energy recovery system) for capturing and storing the car's braking energy instead of wasting it as heat.

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