The VAILLANT EcoTEC Plus 840 is a high-output 40kW combi boiler designed for larger homes and commercial applications requiring reliable heating and hot water on demand. This unit operates without a flue, offering flexible installation options and space-saving benefits.
Built on VAILLANT's proven EcoTEC platform, the Plus 840 delivers consistent performance with advanced combustion technology for efficient operation. The combi configuration eliminates the need for a separate hot water cylinder, reducing installation complexity and freeing up valuable space.
Ideal for properties with higher heating demands, this boiler provides rapid heat-up and responsive hot water delivery. The model number 0010036018 ensures compatibility with genuine VAILLANT parts and support networks across the UK.
Suitable for experienced installers and heating engineers familiar with high-capacity combi systems. Verify flue-free installation requirements and local building regulations before purchase.
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