Development and production of innovative heat exchangers Q-Blue specialises in the development and production of innovative shower heat exchangers. The Q-Blue smart heat exchangers prevent unnecessary wastage of energy. Our products transfer the heat of the waste shower water to the cold water supply. The water flows do not come into contact with each other, only the heat is reused. Therefore, heat is not thrown away down the drain. As a result, customers enjoy significant savings while ensuring the environment is respected. Q-Blue systems turn heat loss into heat recovery.