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flexoTHERM air source heat pump

flexoTHERM and aroCOLLECT for air source applications

  • The heat pump harnesses naturally renewable energy from the air, so it saves money on your fuel bills and reduces your carbon footprint
  • Homeowners can benefit from a range of warranties of up to 7 years parts and labour when installed by a renewable partner
  • There are a range of heat outputs available, so it’s a good solution for homes that have a 400V supply
  • Incredibly quiet during operation and is Quiet Mark approved
Find a renewables partner


What you need to know:

  • Available in 400V - 400V heat pump is available in 5, 8, 11, 15 and 19kW models
  • For the best performance, your home should be well insulated and have a low heat loss – your Vaillant Advance Renewable Installer can carry out a full heat loss calculation to work out which model will suit you best.
  • Converting your home to use an air source heat pump system will take around 3 to 5 days.
  • flexoTHERM is one of quietest heat pumps on the market, as its Quiet Mark award demonstrates this
  • flexoTHERM is Certified by the Microgeneration Certification Scheme (MCS), a national quality assurance scheme that recognises high standards in renewable energy technologies.
  • As an MCS certified product, flexoTHERM could benefit from Renewable Heat Incentive (RHI)

Vital statistics:

  • Five models covering 5, 8, 11, 15 and 19kW heating output
  • ErP A+++ rated for both hot water and heating efficiency when used with Vaillant controls
  • Dimensions in mm (5kW): W 595 x H 1185 x D 600

Useful content:

What is an air source heat pump?

How does a heat pump work?

Upgrading your heating system

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.