The indirectly heated BXX / BXX-I storage tank is suitable for the production of domestic hot water. The stainless steel (AISI 316) internal heat exchanger can be hydraulically connected to a heater, heated buffer tank, solar collector system.

The insulation is flexible polyurethane foam with a PVC (SKAY) coating. The tank has a cleaning flange on which it can be made the periodic maintenance. About cathode protection in storage magnesium anode is provided.

The maximum permissible operating pressure of the storage tank is 6 bar.