A twin-storage system with a cost-effective and compact solution, so it is possible to minimize space and installation costs.

The system consists of two units, with two cylindrical tanks acting as one tank: on top, a heating buffer tank with a coil to quickly produce domestic hot water (100-300 litres). The lower is a buffer tank, the capacity of which can be selected according to needs, in 30, 50 or 90 liter versions. A special feature of the lower buffer storage is that it can be rotated. The tanks have a hard PU insulation.

The unit is suitable for use as a heat pump or other low temperature heat source for heating water. The bottom buffer tank is used to increase the amount of water in the heating medium (e.g. heat pump defrosting) or can also be used as a hydraulic changeover. The tanks can be connected to an electric heater, which can be used as a backup or auxiliary heater.

The corrugated DHW coil is made of AISI 316L stainless steel, while the tanks are made of S235JR EN10025 quality carbon steel plate.

Properties:

The maximum allowable working pressure of the tanks: 6 bar
The maximum working temperature under pressure of the tanks: 95°C

Capacity:
Upper buffer tank: 100, 160, 200, 300 litres
Lower buffer tank: 30, 50, 90 litres