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The auroSTOR hot water cylinders for solar thermal

The cylinder range designed for our solar thermal system

  • Designed specifically for the Vaillant auroTHERM solar thermal system
  • Caters for all house types with range of hot water cylinders from 200 to 500 litres
  • 100% recyclable in stainless steel with a 25 year outer shell guarantee
Find a renewables partner


The auroSTOR solar thermal cylinder range has been designed to work in harmony with Vaillant auroTHERM solar thermal collectors, to provide a highly efficient heating and hot water system.

Featuring state-of-the-art insulation as well as a 100% recyclable stainless steel shell, auroSTOR solar thermal cylinders offer a robust and sustainable system solution to complement your Vaillant solar thermal system.

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

What you need to know

  • Ranging from 200 up to 500 litres, our auroSTOR solar cylinders can cater for a wide range of properties and hot water demands.
  • Designed to work perfectly with the Vaillant auroTHERM solar thermal collectors.
  • Ensure maximum heat transfer thanks to a unique integrated coil system, which helps to reduce running costs and increase hot water performance.
  • 100% recyclable stainless steel tank with an ultra-hard-wearing outer shell that comes with a 25-year guarantee.
  • Quiet operation.

Vital statistics

  • Available in a range of sizes from 200 to 500 litres.
  • The 500 litre cylinder can be used for flexoTHERM and aroTHERM heat pumps.

How to get

It’s fair to say that some of the terminology around renewable products can be complex and sometimes confusing, which is why we always advise talking to a qualified renewable heating engineer who can advise on the best renewable solution for you and your requirements.

Fill out this form, and you will be contacted by a Vaillant Advance renewable engineer shortly.

Once you have been contacted, a renewable heating engineer will arrange an appointment to visit your home, understand your requirements and give you a quote for the installation of you renewable product(s).

Why choose a Vaillant Advance installer?

Advance is Vaillant’s installer loyalty scheme. By choosing a Vaillant Advance Partner, you’re choosing our network of fully trained, independent installers who can offer you exclusive extended Guarantees, as well as a free no obligation quote to ensure your Vaillant boiler is the perfect fit for you and your home.