Basically, it is a process of heating water by using refrigeration gas that flows through solar panels collecting heat from the ambient air temperature, rain, sunshine and wind! The system looks like your typical solar thermal system only the Thermodynamic system works in a totally different principal. The panel on the roof is connected to the hot water cylinder in the hot press. This panel captures the heat from the surrounding air day and night, from the wind, rain or sunshine. This heat is transferred to the refrigeration gas which is inside the pipes in the panel. It then flows to the heat exchanger which is fitted on the hot water cylinder. This heat exchanger has a mini compressor which heats the refrigeration gas to 110 degrees Celsius which then flows through the heat exchanger into the hot water tank and heats the domestic hot water to 55 degrees Celsius. The mini compressor used has a motor which uses only 390 watts of power to run it.