For support call: 0330 100 3143
Find an Installer

Domestic boiler cylinders

Explore the uniSTOR range


The uniSTOR hot water cylinder range has been designed specifically to work with Vaillant System and Regular boilers to provide highly efficient heating and hot water systems.

Explore the range

  • Designed perfectly to work with Vaillant System & Regular boilers
  • Slim line, pre plumbed and standard cylinders in the range
  • 25 year guarantee on the cylinder shell, for total peace of mind
  • Improved insulation meaning heat loss is minimised and lower running costs
  • Can be retrofitted onto existing heating systems

Featuring state-of-the-art insulation as well as a 100% recyclable stainless steel shell, uniSTOR heat pump cylinders give you a robust and sustainable system solution to support your Vaillant heat pump.

Pre-plumbed cylinder range available which comes with fitted components to make installation quicker for your installer.

All Vaillant hot water cylinders are manufactured in line with standards that are maintained by the Hot Water Association.