The temperature of stored solar-heated water varies a lot. To remain
comfortably hot, it must be reheated. Unlike the storage tank which
maintains the stored water hot, the AquaStar tankless solar model is
specifically designed to boost solar-heated water only at the time that
hot water is being used, and to do so using only the minimum energy
required for the temperature rise required, thereby offering maximum
efficiency. AquaStar solar model 1600PS or 125BS is the perfect backup to
preheated water, be it solar-heated or otherwise.
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