Vaillant Ecotech 840 Combi Boiler with Horizontal Flue & 15mm Scale Reducer

The Vaillant ecoTEC Plus 840 Combi Boiler is a premium 40kW combination boiler designed to provide powerful central heating and exceptional mains-pressure hot water for larger homes with high demand. As a combi boiler, it delivers both heating and instant hot water without requiring a separate hot water cylinder or cold water storage tank, helping to save valuable space while maintaining outstanding performance. Featuring Vaillant's latest condensing technology, intuitive semi-touch controls, and intelligent combustion management, the ecoTEC Plus 840 is engineered for maximum efficiency, simplified installation, and long-term reliability. It is fully compatible with Vaillant...