Heating Technology
Heating Technology

Heat recovery from grey water

Tap into hitherto unknown potential of heat recovery with innovative, double-wall safety tubes


Did you know that in Central Europe about two thirds of hot water consumption is for showering? It takes approx. 10 kWh to heat 200 litres of water from 10 to 55 °C, with the heat energy of the discharged water being lost down the drain! In shower water heat recovery, heat is extracted from discharged waste shower water and used for heating the incoming cold water.


Made of copper and featuring an optimised innovative design, the safety tube offers highest heat transfer performance even in bent condition. As regards the connection situation and the exact tube design, we comply with specific design requirements.

You can find more product information here
GEWA-safe double-wall tubes

Your contact person for heat recovery

Oliver Woelflik, Product Management Heat Exchangers

P +49 731 944 2969 Send E-mail

Your benefits at a glance

  • Best heat transfer | Our innovative double-wall tubes made of copper offer highest heat transfer performance!
  • Energy-efficient | Save up to 65% of energy for water heating.
  • Safe | Trust in reliable separation of fluids using safety tubes according to DIN EN 1717.