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

The 200-liter buffer storage tank FISH S4 200 X is a compact, vertical thermal storage tank for heating systems with solid fuel boilers, oil or gas boilers, heat pumps, and electric boilers. As a buffer storage tank without a heat exchanger, it improves system efficiency, reduces boiler starts, and ensures a consistent heat supply.

Your advantages at a glance

• Compact buffer storage tank for small to medium-sized heating systems.
• Stratified buffer storage tank technology for better temperature stratification and efficient energy use.
• Ideally suited for systems with solid fuel, pellet, or oil boilers, as well as heat pumps.
• 50 mm insulation to minimize heat loss and increase energy efficiency.
• Multiple connection options for generators, heating circuits, and sensors.
• Robust, durable steel construction for continuous heating operation.

Areas of application

• Buffer storage tank for compact heating systems in single-family homes.
• Heat storage in combination with wood-burning stoves with water jackets or small heat pump systems.
• Hydraulic decoupling and volume increase of existing heating systems.

Technical Data – Storage Tank

Technical Data – Construction & Dimensions

• Storage material: Steel S235JR.
• Insulation: 50 mm rigid polyurethane foam, CFC-free.
• Energy efficiency class heating: B.
• Compact design for small boiler rooms.

Connections & Features

• Multiple flow and return connections for integrating different heat generators.
• Connections for temperature sensors and thermometers.
• Ventilation and drain connection.
• Stable feet for safe operation.

Note: The buffer tank must only be installed by a qualified specialist company; the technical documentation and all applicable regulations must be observed.