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Combination Boilers

Vaillant’s range of reliable high quality combi boilers delivers for all house types from a one-bedroom / bathroom flat through to a four-bedroom property with two bathrooms. Our combi range covers 25kW to 43kW and we have a unique storage combi for 20 l/min flow rate.

ecoTEC exclusive with Green iQ

  • The best in boiler performance, control and efficiency
  • Fully compatible with our vSMART™ heating control for optimum performance and smartphone app control
  • Eco-friendly and 85% recyclable
  • Hand-assembled in our award-winning Derbyshire manufacturing plant
  • 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 825, 832, 835, 838 and 938

ecoTEC plus combination boilers

  • Step by step full text installation wizard
  • Dedicated models available for LPG
  • 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

ecoTEC pro 24, 28 and 30kW

Combination boiler range

  • Removable side panels and push-fit flue system
  • Fully modulating low NOx burner and fan
  • ErP 'A' rated
  • Standard 2 year warranty, can be upgraded to a free 5 year warranty when registered through Vaillant Advance.

ecoFIT pure 25, 30 and 35kW

ecoFIT pure combination boilers

  • Top and rear flue options
  • Automotive grade aluminium heat exchanger
  • Easy installation and maintenance
  • Standard 2 year warranty. Free 7 year warranty when registered by a Vaillant Advance partner (promotion until 31/12/18)

ecoTEC sustain 24, 28, 34kW

Social housing combination boiler range

  • Designed for specification in the social housing market
  • Quiet Mark awarded
  • High efficiency ErP 'A' rated product
  • High quality stainless steel heat exchanger designed for long life and easy maintenance
  • New condensate trap with safety back-up

ecoFIT sustain 25, 30 and 35kW

Social housing combination boiler range

  • Designed for specification in the social housing market
  • Quiet Mark awarded
  • High efficiency ErP 'A' rated product
  • High quality lightweight aluminium heat exchanger with excellent power to weight ratio
  • Modulating high torque pump uses low energy