Timeline for What advantages (any?) does water heating via photovoltaic system have over solar thermal?
Current License: CC BY-SA 3.0
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| Dec 11, 2013 at 7:29 | comment | added | Peter Ivan | Solar thermal systems I've met have a built-in protection against Legionnaires disease. They monitor the tank temperature and if it hasn't reached certain limit during a certain period (a week), they command the not-solar-heater (gas or electricity) to heat the whole tank to kill the bacteria. | |
| Dec 10, 2013 at 16:16 | history | answered | Ian Ringrose | CC BY-SA 3.0 |