Store excess thermal energy from heat

Heating water buffer cylinders are cylinders that temporarily store excess thermal energy from heat generators which is not currently needed and transferred back to the heating system when there is a demand again. The heat generators can be boilers, heat pumps, CHP units including micro CHP units, or solar thermal systems. The combi cylinder is a combination of heating water buffer cylinder and DHW cylinder. Heat is transferred for DHW heating via an internal heat exchanger.

Viessmann Vitodens, Gas Boiler range

Which heating system is the best for you?

The Vitocell product line-up

Vitocell 100-EW
Vitocell 100-E/-W
The ideal cylinder for heat pump systems 

A versatile DHW cylinder that is optimised for use in heat pump heating systems and is also suitable for use in conjunction with solar thermal systems and solid fuel boilers. Available with a capacity of up to 2000 litres,...

  • Suitable for
    Multiple users
  • Domestic
    Hot Water
  • Up to
    2000 litres
  • Compatible with
    Heat pumps
Discover the Vitocell 100-E/-W
Vitocell 140-e
Vitocell 140-E
A versatile, futureproof buffer cylinder

A high capacity DHW cylinder for heating systems with multiple heat sources and heat consumers, with multiple flow and return connections. Particularly suitable in conjunction with solar thermal systems, heat pumps and sol...

  • Multiple 
    Users
  • Domestic
    Hot Water
  • Up to
    900 litres
  • Compatible with
    Heat pumps
Discover the Vitocell 140-E
Vitocell 160-e
Vitocell 160-E
A hygienic, high capacity buffer cylinder 

A high capacity DHW cylinder featuring an integral indirect solar coil and additional stratification system for simplified installation and improved solar yield. Available with a capacity of up to 900 litres and supports f...

  • Suitable for
    Multiple users
  • Domestic
    Hot Water
  • Up to
    900 litres
  • Compatible with
    Heat pumps
Discover the Vitocell 160-E

Unsure how to choose? Get a no-hassle, free consultation from our experts!

Design & Technology

Our heating water buffer cylinders are designed to be combined with a variety of heat generators such as solar thermal systems, heat pumps and solid fuel boilers. With a capacity range of 200 - 2000l depending on the model, we have a solution for every need including multiple flow and return connections, plus additional connections for test points. All-round, high grade thermal insulation ensures heat losses whils the optional Vitotrans 353 freshwater module, available as an accessory, allows for hygienic DHW heating in accordance with the instantaneous water heater principle.

Heating water buffer tank

Heating water buffer cylinder

Viessmann Vitocell heating water buffer cylinders only require a small floor space. Thanks to their elegant design they can always be installed in multi purpose rooms.

Futureproof DHW

Our heating water buffer cylinders are designed to be futureproof and are compatible with a variety of alternative fuel source heat generators.

We always recommend the installation of a solar thermal system to help you to save energy and also save money when heating water in your home.

Hygienic and long-lasting

The quality of the inner surface of the DHW buffer cylinder is crucial to providing DHW hygienically. For this reason, Viessmann 100 series buffer cylinders relies on a Ceraprotect enamel coating for safe and hygienic DHW with lasting protection against corrosion.

Benefits of our heating water buffer cylinders

Benefits of chooisng a heating water buffer cylinder include:

  • Simplified installation through integral indirect solar coil. No additional pump required.
  • Optimised connection arrangement for integrating multiple heat sources, including heat pumps and solid fuel boilers.
  • Option of integrating an immersion heater.
  • Freshwater module for hygienic DHW heating in accordance with the instantaneous water heater principle available as an accessory.
  • Connection set with Solar-Divicon for mounting on the Vitocell, available as an accessory.

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