According to the Energy Rating Website Australian hot water systems could account for as much as 25% of the total household energy consumption. A Sanden heat pump only uses 22% of the energy required by an electric storage system hot water system putting it miles ahead in energy and running-cost savings compared to inefficient electric and gas hot water systems. Should I replace my old electric storage hot water system with a Sanden? Here at Solar Flow we are constantly getting asked about the merits of removing old inefficient gravity-fed or electric storage hot water systems and installing a Sanden heat pump and compressor. With over 4 years of history installing heat pumps in Melbourne we can categorically say that decommissioning your old electric hot water unit and installing Australia’s most efficient heat pump, the Sanden, will save homeowners in the vicinity of $700-$1,000 per year. How much does a Sanden heat pump cost in Melbourne? The price o...