Kroll HKK40


The mobile heating and cooling combination HKK40 is an automatically switching, mobile air source heat pump, that heats or cools buildings in a CO2-neutral way without fossil fuels thanks to its complete electric operation. Due to the variable operation range between -15°C and +40°C of outside temperature it can be used during the whole year. You only have to adjust the target temperature by App, the rest is regulated automatically. The device is equipped with cold and hot air hoses and ready to be used with electricity and thus leaves the decision where to be put to the user.

+ CO2 neutral heating
+ temperature range between -15°C and +40°C of outside temperature
+ automatic regulation of the target temperature via app
+ compact construction



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