Resumen
System of sanitary hot water by solar energy that includes, at least: A plurality of deposits (1,2,3) placed in series, generally two or three; in such a way that the hot water (11) that leaves the plurality of solar collectors (4) goes through the first tank (1), and from there to the second (2) and the third (3), to the last tank (3) ) is maintained at a lower temperature than the first (1) and second (2) tanks, said last tank (3), furthermore, includes a heat exchanger (71) through which the gray water (10) passes, yielding its heat . (Machine-translation by Google Translate, not legally binding)