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A white Vaillant ecoTEC sustain 34kW combi gas boiler on a green gradient background, with text: "Fully Fitted", "£0 Deposit", and "Vaillant ecoTEC sustain 34kW Combi Gas Boiler.

Vaillant ecoTEC sustain 34kW Combi Gas Boiler

£1,950.00

High-output combi for larger homes, with robust efficiency and specifier-friendly design.

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The Vaillant ecoTEC sustain 34kW Combi Gas Boiler is a condensing combi boiler for larger homes with up to 15 radiators and 2 bathrooms, designed for social housing with low maintenance needs. It provides a hot water flow rate of 13.9 litres per minute at 35°C and a 94% seasonal efficiency rating (ErP A-rated). Measuring 720x440x338mm and weighing 36kg, it fits in a cupboard and aligns with the ecoTEC pro footprint. It includes a stainless steel heat exchanger, a low NOx burner, and a Grundfos pump. Quiet Mark certified, it features a removable condensate trap, push-fit flue system, and a clear LED display. Compatible with aroTHERM hybrids and vSMART controls, it’s tested for 20% hydrogen blends, supports natural gas or LPG, and comes with a 2-year warranty, extendable with a Vaillant Advance installer. Ideal for high-demand homes seeking eco-friendly, reliable heating.

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