• jonne
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    1 year ago

    I had one in a rental I lived at for a while until it broke, that one used an instant gas boiler behind the tank to heat up the water more. The system you describe would be better (but by smart, I meant it should also take into account when free solar power is available, and predict when we’re going to use hot water).

    • SomeoneSomewhere@lemmy.nz
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      1 year ago

      It depends on the utility pricing as to what’s best in that regard, but yes, solar diverters on conventional electric-only tanks are pretty common in NZ. It’s pretty rare to put both PV and solar hot water on the same house.