Low hot water use
High hot water use
Low hot water use
High hot water use
The calculations above are a guide only based on average household use. Heavy use appliances such as a spa pool, electric heating, etc may distort these figures.
* HP4000LT, 73.8% annual savings compared with electric hot water cylinder, Zone 5, Project Solar AS/NZS 5125 and AS/NZS 4234
Calculator assumptions: normal water heating costs are at least 25-30% of total spending on power
“We have loads more hot water than when we were on an element. We have three showers in a row and we never run out of hot water. In fact, we have to be careful because it is ripping hot. This is all nice because it also knocks a big chunk out of our usual power bill!”
“Our power bill came this week. $197! In 8 years, I’ve never had a power bill starting with a ‘1’, it’s normally a ‘4’! It was a reading too, not an estimate. And that’s for the month gone, I wager it will get less over summer, so that’s fantastic!”