While ordinary heat pumps produce less heat below 7 degrees, only Mitsubishi Electric HyperCore® Technology guarantees its fully rated capacity right down to -15 degrees so you get all the heat you paid for.
The map below shows just how many ground frost days there are right across New Zealand during winter. In these low temperature conditions the performance of normal heat pumps would deteriorate, but advanced HyperCore® Technology means you can rely on the Mitsubishi Electric HyperCore® Range to keep you warm when you need it most. The Mitsubishi Electric HyperCore® Range includes the only heat pumps that guarantee this level of advanced performance.
Mean number of days per year of ground frost according to the NIWA website. Ground frost occurs when the air at ground level is chilled below freezing point.