Domelys technologies is a french cleantech start-up specialised in the conversion of renewable energy in buildings. The company developed a patented solution called CalH2O, for the heat recovery hot water discharged by ships, industrial or commercial.
Created by Yann Menez and Frédéric Manoury, DOMELYS Technologies developed an innovative system to filter gray "hot"water then make the move in a heat exchanger to warm water cold and reduce the cost of heating water.