Vaillant 1002039110020391 ecoFIT pure 835 combi boiler only

The Vaillant ecoFIT pure 835 combi boiler is one of Vaillant’s ‘go anywhere’ range. An ultra-compact, ultra-flexible unit with top or rear flue options plus cupboard-fit capability so it can be installed in any part of the house. An easy-to-read LED diagnostic display and reliable Vaillant parts, coupled with robust intelligent German engineering, make the 35kW output ecoFIT simple to operate and install, hassle-free to maintain and ErP A rated.

Key Features

• German engineering and award-winning UK manufacturing
• Automatic purging assistance
• Aluminium heat exchanger for a lightweight installation
• Complete availability of spare parts
• Easy-accessibility of unit layout for easy maintenance
• 4-sided cooling and water agitation of the high quality heat exchanger reduce stress for longer life reliability and reduced maintenance costs
• Compatible with Vaillant’s intelligent range of controls
• Top and rear flue options for flexible siting
• Compact, cupboard fit solution
• Clear LED display offers visibility in dimly lit areas for easier use
• Recognisable Vaillant fault codes for easier diagnosis
• High-quality components
• 10m flue length across all ecoFIT pure boiler outputs
• Standard 2 year warranty
• Extended warranty available when following Vaillant installation specification and guidelines

Specifications

• Dimensions: 700 x 390 x 295 mm
• Heating output range (condensing): 7.5 – 26.7 kW
• DHW output: 35 kW
• DHW flow rate (Δ35K): 14.1 l/min
• Heat exchanger: Aluminium
• Expansion vessel: 8 litres
• Gas Council number: 47-044-70
• ErP efficiency: 94% (A rated)
• Maximum flue length (60/100): 10 m

Applications

Ideal for domestic properties requiring a compact, high-output combi boiler with flexible flue options and reliable performance.

What’s in the box

Vaillant ecoFIT pure 835 combi boiler only (article number 0010020391).