For detailed instructions and related resources, please visit our Vaillant Ecotec flow temperature adjustment guide.
Video
Not sure what flow temperature to set? Try the Boiler Optimiser.
Smarter Heating & Hot Water
Video guide showing how to adjust the flow temperature on Vaillant Ecotec boilers from 2012 onwards.
For detailed instructions and related resources, please visit our Vaillant Ecotec flow temperature adjustment guide.
Not sure what flow temperature to set? Try the Boiler Optimiser.