Combined storage tanks for heating and domestic hot water technology

Combined storage tanks combine multiple storage functions in one system and, depending on the design, can support heating water, domestic hot water preparation, and the integration of various heat generators. They are often used when the heating system and domestic hot water supply are to be connected in a space-saving and systematic manner. In modern heating systems, combined storage tanks can be an important interface between the heat generator, heating circuit, drinking water preparation, and additional energy sources.

Advantages of combined storage tanks

• combine heating and domestic hot water functions in one storage system
• support structured integration of various heat generators
• suitable for new construction, renovation, and modernization of existing systems
• can be combined with wood heating, heat pumps, or solar thermal systems depending on the design
• help to set up storage technology and system hydraulics clearly

Areas of application and target groups

Combined storage tanks are suitable for homeowners, self-builders, buyers with plumbing and heating expertise, and technically interested end customers who want to plan or expand a heating system with domestic hot water preparation and storage function. Typical areas of application are single-family homes, renovation projects, systems with wood heating, pellet heating, heat pumps, solar thermal systems, or combined heating systems. Combined storage tanks are particularly interesting where multiple system areas are to be sensibly brought together.

Important selection criteria

When selecting a combined storage tank, you should check the storage volume, design, connection options, heat exchangers, insulation, domestic hot water function, suitability for heat generators, and the existing system hydraulics. The space available in the boiler room, installation access, tank height, connection positions, and the planned system expansion also play an important role. The appropriate tank size and integration always depend on the building, heat demand, hot water demand, and heating system.

Technical data is for orientation purposes only and does not replace proper planning or sizing. The integration of a combined storage tank should be coordinated with a qualified specialist company, especially for domestic hot water technology, solar thermal systems, heat pumps, or multiple heat generators. For further selection, suitable categories may be helpful, for example Storage technology, Buffer tanks, Hygiene tanks and Hot water tanks.

Frequently Asked Questions About Combined Storage Tanks