With this innovative dual heat exchanger you can heat up bathing water by either using the heating element or by exchanging heat through the coiled tube. It can also be operated with both systems at the same time which raises the capacity considerably. Use your preferred energy source and add the other one when needed. It is equipped (standard) with a flow switch for low water protection, a safety thermostat 55°C, and with a highly corrosion resistant heating element Incoloy 800. It is easily and simply connected to the water circuit with a gluing socket D50. It is made to save space and it’s perfectly suited for whirlpools, fish tanks, and similar small facilities. To ensure product longevity, like for all heat exchangers, we carefully use high quality materials and guarantee first class workmanship.