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Solar thermal drainback system

  • Mircogeneration Certification Scheme (MCS) accredited
  • Total system available under one article number
  • Suited for commercial properties


The Vaillant auroFLOW plus drainback system is the result of intensive research and development and is designed to offer maximum efficiency, high performance and total reliability.

The system combines all of the advantages of the very latest Vaillant solar technologies in an easy-to-specify and install kit, under a single article number.

The flexibility of auroFLOW plus means that it can be connected into a conventional heating system or a Vaillant heat pump system, such as ground source or air source, to provide hot water when required. The system is also easily upscaled to suit larger commercial building applications.

Features and benefits

  • Suited to commercial applications such as offices, schools, restaurants and hotels
  • The Vaillant auroFLOW plus drainback system works 'on demand' and does not go into stagnation
  • Simply switching the system off means that there will be no solar fluid in the collector, preventing the need for draining the system down until the building becomes reoccupied
  • By preventing stagnation, solar drainback systems also maximise the solar gain
  • Mircogeneration Certification Scheme (MCS) accredited
  • The auroFLOW drainback system comes an easy-to-specify and install kit under a single article number
  • The auroFLOW plus can be easily connected into a conventional heating system or Vaillant heat pump system

Related Products

Related Products

auroTHERM exclusive VTK 570 (discontinued)

  • Standardised roof bracket system
  • Vertical collector available for on-roof and flat roof installations with mounting bracket options
  • Up to six collectors can be connected in a series

auroTHERM VFK 145

  • Standardised roof bracket system
  • Push fit hydraulic connections
  • Structured solar glass 3.2mm thick with 91% solar transmission

auroSTOR cylinders

  • Easy to clean - High quality VG white powder coating
  • Best in class stand by energy losses
  • Inline front connections