Storage Water Heaters | Stationary Solar with 2 Coils

The design of ELIZ EURO S2 tanks with two independent exchanger coils allows two heat sources to be connected at the same time, which you'll appreciate especially with combined hot water preparation systems. One coil is usually used for a solar collector, the other for a boiler, heat pump or other technology.

This allows the operator to freely set the priority of the sources and make the most of cheaper or renewable energy, while the second source serves as a backup when the first one's output is insufficient. Models with volumes of 200, 300 and 500 litres are available.

Frequently Asked Questions

• Can both coils of the tank be used simultaneously? Yes, both exchangers work independently and can be operated at the same time depending on current demand and the availability of heat from each source.
• Is a controller needed to manage two heat sources? Yes, for the solar system and the second source to work together efficiently, a suitable solar or cascade controller is recommended.