The world's largest supplier of underfloor heating

Vaillant Arotherm Inline 6kW Back Upheater

Vaillant Arotherm Inline 6kW Back Upheater


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Wall-mounted and compact heat exchanger for aroTHERM heat pump systems.
Designed to be used with the aroTHERM heat pump range
Provides back-up boost during extreme cold snaps
Inbuilt temperature sensor and sensor pocket
Wall-mounted, compact and lightweight - 500mm (H) x 250mm (D) x 280mm (W) for easy and flexible installation
Flexible outputs - Can be wired to give 2kW, 4kW, 6kW or staged output

Delivery options

At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

We're proud to offer a range of delivery options to suit you, including free delivery on all of our orders or next working day delivery for a fixed price of £4.99.

Our delivery options

  • 2-3 Working Days (3-5 working days on wet room and energy efficiency products)
  • FREE
  • Next Working Day
  • £4.99 (order before 4pm, Monday to Friday)
  • Next Working Day Before 10.30am
  • £14.99 (order before 4pm, Monday to Friday)
  • Saturday Delivery
  • £29.99 (order before 4pm on Friday)