The new water tank developed by Chromagen has a thermosiphon system. The heating system uses water in a closed circuit, which is hermetically separated from the running water that comes out of the faucets. That ensures the running water to remain pure and clear. We felt privileged to confront such a challenge, and addressed it on two levels: The single product and the whole group of tanks, seen on our roof tops. We knew the single system would have to be attractive and elegant, but our final goal was to achieve decent and harmonic scenery when in big numbers.