An air to water collector, offering an output of 100kW, with superior performance, incorporating only fan and hydraulic connections outdoors, supplying energy to internal ecoGEO unit. This offers simple installation, hybridisation options with geothermal collectors and increased longevity of heat pump components.

The AU range also offers superior defrosting technology where compressor is deactivated during defrosting cycles, very low noise levels, no limitation of distance between indoor and outdoor units and advanced HTR technology for higher water temperatures. Units can be cascaded together or mixed with geothermal units for increased outputs and capacities and through the ecoSMART system, can also be hybridised with solar PV for the ultimate home heating and power solution.