They extract heat from the skin air, even in cold climate. They operate by absorbing heat from the skin air using a refrigerant, which then evaporates in a small temperature. An enclosed, air cooled ­compressor with defined air ­outlet can transfer the overall volume of heat on the ­cooling air https://sergiovzehk.fireblogz.com/62662341/industrial-heat-pumps-no-further-a-mystery