Our website uses cookies to help provide you with the best experience tailored to your interests. To use the website with full comfort, please accept to receive all cookies on our website. For more information with regard to Cookies please see our Privacy policy.

Accept Decline

System Boiler Range

Vaillant’s range of reliable high quality sealed system boilers delivers for all house types with higher hot water demands from a single bathroom home through to five-bedroom multi-bathroom mansions. Our system range covers 12kW to 37kW and they work perfectly with our range of Vaillantcylinders. For even larger properties choose the ecoTEC plus 46 and 65kW models.

ecoTEC exclusive Green iQ 27kW

ecoTEC exclusive system boiler

  • Wide modulation range of up to 1:10
  • 85% recyclable at the end of its life
  • Compatible with Vaillant’s vSMART™ heating control
  • 5-year guarantee as standard, with 7 years available when you book a Vaillant Advance installer or 10 years when fitted with a Boiler Protection Kit by a Vaillant Advance installer

ecoTEC plus 612, 615, 618, 624, 630 and 637

ecoTEC plus system boiler

  • Step by step full text installation wizard
  • Flame lift detection system
  • ErP 'A' rated
  • 5-year guarantee as standard, with 7 years available when you book a Vaillant Advance installer or 10 years when fitted with a Boiler Protection Kit by a Vaillant Advance installer

ecoFIT pure system

The cupboard-size system boiler for any home

  • High performance build, smart controls and efficiency
  • Compact enough to fit in a kitchen cupboard
  • A full range of heating control options, from our simple analogue timers to our vSMART™ smartphone app
  • Quiet Mark approved, meaning it’s the quietest product in its category
  • Standard 2 year warranty. Free 7 year warranty when registered by a Vaillant Advance installer (promotion until 31/12/18)

ecoTEC 46kW & 65kW

ecoTEC high output boilers

  • Suitable for domestic and commercial projects
  • High quality stainless steel heat exchanger offers more resistance to oxidation and corrosion
  • All major components built-in for easy installation
  • Energy saving two-stage frost protection system and pressure sensor to monitor system pressure via diagnostics and a flow sensor
  • ErP A rated

ecoTEC plus 48 and 64kW

High output wall-hung boiler range

  • Compact design
  • Suitable for natural gas and LPG applications
  • High efficiency stainless steel heat exchanger
  • Full range of accessories available