How the Blue works
Traditionally, your shower water goes directly into the drain. This water is still warm and a lot of energy is wasted this way. The Blue collects the hot water in the drain and pumps it to the Waste Water Heat Recovery (WWHR) module. The module uses the heat of the wastewater to preheat the cold water. This results in a lower demand for hot water. The WWHR efficiency can reach up to 74.8%.
The Blue is easy to use. It has a knob to control the temperature and a knob to turn the shower on and off. This knob is also used to select the main shower or the hand shower.