Vaillant ecoTEC Plus 831 Combi Boiler (Natural Gas) Ref: 308521 

Replaced by new range in April 2012 - Limited stocks available (lead times may be extended on old models)
To view the new range of Vaillant ecoTEC Combi Boilers click here

The Vaillant ecoTEC Plus 831 Combi boiler is SEDBUK Band 'A' rated, the highest boiler efficiency, and comes with a 2 year warranty. With Vaillant's AquaComfort system Vaillant ecoTEC plus 831 combi boiler provides excellent hot water performance with instantaneous hot water at a constant temperature.

Vaillant ecoTEC plus 831 combi boiler features:

• SEDBUK Band 'A' rated fuel efficiency, economical to run
• Fully modulating low NOx burner and fan, improved energy efficiency, kinder to the environment
• Compact dimensions / compatible with the full range of Vaillant accessories excellent siting versatility and easy installation
• Built-in status / diagnostic display, comprehensive status and diagnostic information and push button programming for easy use
• Built-in two stage frost protection, to prevent damage caused by freezing
• 2 year Vaillant Boilers guarantee, for peace of mind