This Hot Water System Can Save You Up to 80% on Energy Bills (Videos)
Thermodnamic hot water system: It's a Fridge in reverse.
The comments below are from a user of the system and the updated impressions of the product through the years.
Update - 27 April 2013 - Week on week as weather warms up the system is using less electricity per week - currently using 18KW/h PER WEEK (down from 21 a month ago). By comparison: to heat our hot water per day costs the same as running a 10KW shower for just 18 minutes.
Update - 13 June 2013 - Wattage used by system has increased to 700 W/h but overall usage is lower - 14 units of electricity used by the system THIS WEEK ! ... READ MORE BELOW.