The main difference between these systems is an absolutely automated control of all processes and exceptional efficiency for heating sanitary water. An important feature of these solar water heaters is that the storage tank is installed separately from solar panels – collectors. Thus, it meets aesthetic requirements, because the storage tank can be installed in any more suitable place (cellar, basement, terrace, etc. …). This system eliminates the possibility of freezing pipes in the winter. The electric ten and the SR81 digital programmer make this solar heater versatile. PG Split, like all Powergardens systems, integrates easily with an already installed water heater. The supporting structure of the heat-pipe solar collectors is designed for both flat and inclined surfaces.