Did you know that 90% of the heat in shower water is wasted just because the shower water is still hot when it flows into the drain? And of course there are many other potential energy saving sources in our homes, for example dishwashing machines.
How can we re-use this heat? The answer is simple. We can use an heat exchanger, where the heat of drain water is absorbed by cold water flowing through.
The drain water heat recovery unit is one of the easiest way to improve energy efficiency of our houses. It does not require any power source and works with every type of powered water heater.