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Solar Panels & Home Installations Nationwide

White Vaillant ecoTEC Plus 620 18kW system gas boiler on a green and yellow gradient background, with text: "Fully Fitted," "£0 Deposit," and product name at the bottom.

Vaillant ecoTEC Plus 620 18kW System Gas Boiler

£2,950.00

Versatile system boiler for medium homes, with high efficiency and quiet operation.

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Solar Panels & Boiler Installations Nationwide

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The Vaillant ecoTEC Plus 620 18kW System Gas Boiler is a condensing system boiler for medium-sized homes with up to 12 radiators and 1-2 bathrooms, requiring a hot water cylinder. It delivers an 18kW central heating output and a 94% seasonal efficiency rating (ErP A-rated). Measuring 720x440x335mm and weighing 36kg, it’s cupboard-friendly. It features ioniDETECT technology, a stainless steel heat exchanger, frost protection, and pressure/flow sensors. Quiet Mark certified, it’s smart-home ready with myVAILLANT app control and compatible with hybrid systems. It supports natural gas or LPG and comes with a 5-year warranty, extendable to 7-10 years with a Vaillant Advance installer. Perfect for family homes with higher hot water demands.

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