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Solar Panels & Home Installations Nationwide

A white Vaillant ecoTEC exclusive Green iQ 835 35kW Combi boiler on a green gradient background, with yellow labels reading “Fully Fitted” and “£0 Deposit.”.

Vaillant ecoTEC exclusive Green iQ 835 35kW Combi Gas Boiler

£1,950.00

Premium, high-efficiency combi for medium to large homes, with Green iQ technology and quiet operation.

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10 in stock

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Solar Panels & Boiler Installations Nationwide

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The Vaillant ecoTEC exclusive Green iQ 835 35kW Combi Gas Boiler is a premium condensing combi boiler for medium to large homes with up to 15 radiators and 1-2 bathrooms. It delivers a hot water flow rate of 14.3 litres per minute at 35°C and a 94% seasonal efficiency rating (ErP A-rated, A+ with vSMART control). Measuring 720x440x338mm and weighing 39kg, it fits in a standard cupboard. Features include an extra-condense heat exchanger for enhanced efficiency, Green iQ mode to optimize running cycles, a 1:10 modulation range, and a stainless steel heat exchanger. Quiet Mark certified, it’s compatible with Vaillant’s vSMART control for smartphone app control and is 85% recyclable. It’s tested for 20% hydrogen blends via the HyDeploy project, supporting low-carbon solutions. It supports natural gas or LPG with a conversion kit and offers a 5-year warranty, extendable to 10 years with a Vaillant Advance installer and boiler protection kit. Ideal for eco-conscious homes seeking top performance.

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Availability: In Stock

We offer free delivery on all installations, regardless of complexity. We're here to ensure your experience is hassle-free from start to finish.

If you want to cancel your order, you can do so within 14 days of receiving the delivery of the last goods. This policy provides you with the flexibility to make decisions that suit your circumstances, ensuring you're always satisfied with your purchase.