watso cannot complain about the solar hws. as far as boosting the temperature (eg winter), watso manually puts the booster on at the end of the day - thus on most days, the panels have had all day to at least warm the water a little bit.
think about getting a solar system which does not use a sacrificial anode
why not check out the following system
"The Rheem Heat Pump water heater has been specifically designed for Australian environmental conditions by cleverly removing heat energy from the ambient air and storing in the water tank. In cold conditions the clever Rheem Heat Pump has a unique freeze mode which activates a booster element to ensure plenty of hot water is available, even on the coldest winter nights."
it works a bit like a reverse cycle airconditioner. watso would presume that in summer, it would be very economical to heat the water, as the ambient air temperature would already be hot. another advantage, is that the water is heated from the top down, which means that there is hot water, sooner (good for winter)
