The GEYSER Sky Hi HP R0 is the first heat pump with R290 and frequency controlled scroll compressor. The system is optimized for heating operation, thus exceptionally high efficiency values can be achieved. Due to the very good efficiency values SCOP 4.8, the extended operating limits and the high water outlet temperature of up to 78°C, the product range consisting of three sizes is ideally suited for the currently so urgently needed renovations of heating systems with fossil fuels.