Stationary Solar with 2 Coils

ELIZ EURO S2 tanks have two separate heat exchanger coils, which allows two different heat sources to be connected at the same time – typically a solar collector for roof-based heating and a conventional boiler as a backup source. This way the system prioritizes free solar energy, and the boiler only tops up the heat when needed.

Models with a volume of 200, 300 and 500 liters cover the needs of both smaller and larger households with a solar system.

Frequently Asked Questions

• Why does a solar water heater tank have two coils? One coil is connected to the solar collector and the other to the boiler or another source – this way the water is heated primarily by the sun, and the boiler only adds heat when necessary.
• What tank volume is suitable for a 4-5 person household with solar? A volume of 300 liters is generally recommended; for higher consumption or a larger solar collector area, 500 liters is also an option.