300 L Buffer Storage Tank – Stratified Storage Tank for Heating Systems, Vertical Buffer Storage Tank

The 300-liter buffer storage tank FISH S4 300 X is a vertical thermal storage tank for heating systems with solid fuel boilers, oil or gas boilers, heat pumps, and electric boilers. It functions as a buffer storage tank without a heat exchanger and ensures efficient storage and release of heating heat throughout the entire system.

Your advantages at a glance

• Versatile use in heating systems with wood, pellet, oil, gas, and heat pump systems.
• Stratified buffer storage tank design for improved temperature stratification and optimal use of the stored heat.
• 50 mm rigid polyurethane foam insulation to reduce heat loss and improve efficiency.
• Standing design with compact dimensions – ideal for boiler rooms with limited space.
• Additional connection options for sensors and temperature measurement for optimal system control.
• Robust steel construction for a long service life in heating operation.

Areas of application

• Buffer storage tank for heating systems with Solid fuel or wood gasification boilers.
• Heat storage for heat pump and hybrid heating systems.
• System expansion and volume increase of existing heating systems.

Technical Data – Storage Tank

• Storage volume: 300 liters.
• Design: Vertical buffer storage tank without heat exchanger.
• Maximum operating temperature: 95 °C.
• Maximum operating pressure: 3 bar.
• Maximum test pressure: 4.5 bar.

Technical Data – Construction & Dimensions

• Storage material: Steel S235JR.
• Insulation: 50 mm rigid polyurethane foam, CFC-free.
• Dimensions with insulation (diameter x height): approx. 657 x 1462 mm.
• Empty weight: approx. 63 kg.

Connections & Features

• Multiple flow and return connections for heating circuits and heat generators.
• Connections for temperature sensors and thermometers.
• Ventilation connection at the top and drain connection at the bottom.
• Stable feet for secure placement in the boiler room.

Note: Installation and connection of the buffer tank must be carried out by a qualified professional in accordance with applicable standards and manufacturer's specifications.