This Vaillant ecoFIT pure 835 gas combi boiler pack connects directly to your central heating and domestic hot water systems. Specifically, it provides a highly reliable and efficient method of delivering both space heating and instant hot water from a single, wall-mounted unit. Furthermore, thanks to the included horizontal flue kit and Vaillant Advance system filter, you significantly speed up the installation process and ensure long-term system protection right out of the box.

Therefore, this combination boiler works perfectly for medium to large-sized homes, typically with multiple bathrooms and 15 to 25 radiators. Additionally, it easily handles high daily domestic demands, delivering an impressive continuous hot water flow rate of 14.1 to 14.4 litres per minute.

The boiler features a robust construction, incorporating a high-specification aluminium heat exchanger with 4-sided cooling to extend its lifetime. Moreover, the accessible internal layout allows all components to be maintained or replaced directly from the boiler front. As a result, this reliable build makes it fully compliant with modern energy standards, offering an ErP A-rating at 94% efficiency and ensuring operation at a sound level of 52dB.

Key Features & Benefits:

• Complete Boiler Pack: The package comes fully equipped with a standard horizontal flue and a premium Vaillant Advance magnetic filter. Importantly, the filter actively reduces blockages by capturing circulating sludge and non-magnetic debris before it enters the boiler. Therefore, it guarantees a safe exhaust setup and maximum long-term protection for your heating network.

• Compact Cupboard Fit: The boiler’s space-saving design measures just 700mm x 390mm x 295mm. Consequently, you achieve highly flexible installation options, easily fitting the unit inside standard-sized kitchen cupboards without sacrificing performance.

• Durable Aluminium Heat Exchanger: The system includes an advanced aluminium heat exchanger designed with 4-sided cooling and water agitation. For example, when operating daily, this mechanism effectively reduces thermal stress, preventing wear and keeping energy bills lower.

• User-Friendly Control & Flueing: The front panel features a clear LED display for excellent visibility in dimly lit areas. In particular, the unit offers both top and rear flue options, completely streamlining the installation process and offering more choices for where you site the boiler.

Technical Specifications:

• Brand/Model: Vaillant ecoFIT pure 835

• Product Type: Gas Condensing Combi Boiler Pack

• Included Extras: Horizontal Flue Kit & Vaillant Advance System Filter

• Central Heating (CH) Max Output: Up to 35.8 kW

• Domestic Hot Water (DHW) Max Output: 35 kW

• DHW Flow Rate: 14.1 – 14.4 L/min

• Dimensions (H x W x D): 700mm x 390mm x 295mm

• Weight: 33 – 35 kg

• ErP Rating: A Rated (Heating & Hot Water) / 94% Efficiency

• Noise Level: 52 dB