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Buffer cylinders for heating and cooling

Compact buffer cylinders to cater for heating and cooling requirements

  • Floor standing and wall-mounted options available
  • Can be cascaded for larger projects
  • Provides cooling functionality for heat pump systems
  • Can cater for additional heat sources
Request a quote


The Vaillant buffer cylinder range are available in two sizes - 100 litres and 200 litres.

Excellent for heating and cooling applications and can be wall-hung for easy siting (100 litre only).

Features and benefits:

  • Floor standing and wall-mounted options for 100 litre buffer cylinder - For more flexible siting options
  • High levels of insulation - Minimised heat loss achieving ErP A rating for 100 litre buffer cylinder and ErP B rating for 200 litre buffer cylinder
  • Can be installed onto a system to provide cooling - For a more flexible solution
  • Eight multi-tappings for additional heat sources - For additional heat sources
  • Provided with blanking plugs - For ease of install
  • Compact and aesthetic design - 100 litre: 927mm (H) x 563mm(D) & 200 litre: 1202mm (H) x 600mm (D)
  • Includes VR 10 sensor - For wiring into the VR 70



Technical dataUnit100200
Nominal capacityl101202
Outer diameter of the cylindermm550600
Height of cylindermm9321202
Net weightkg3444
Weight when filled with waterkg135246
Material of the cylinder and connections SteelSteel
Maximum water pressurebar3.03.0
Maximum operating temperature°C9595
Diameter of hydraulic connections G1" 1/2G1" 1/2
Diameter of sensor pocket G1/2G1/2

Related Products

Related Products

flexoTHERM ground source heat pump

  • MCS accredited and Quiet Mark approved*
  • Suitable for domestic and commercial properties
  • ErP rated A+++ when installed with VRC 700 or VRC 700f

aroTHERM air source heat pump

  • MCS accredited
  • Suitable for domestic and commercial properties
  • Blue fin coated evaporator as standard

geoTHERM ground source heat pump

  • MCS accredited and Quiet Mark approved
  • Suitable for large domestic and commercial properties
  • Energy yield display

geoTHERM mini ground source heat pump

  • MCS accredited
  • Suitable for specification in the social housing and new build developments
  • Provides both heating and hot water

How to get

Request a quote

Vaillant renewable products and accessories are available over the counter or as a next day service at most plumbing and heating merchants throughout the UK.

We can provide you with bespoke solutions to accommodate a variety of installations. To discuss your requirements please contact us.