Vaillant ecoTEC Plus 835 ErP Combi Boiler

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Product Code
109116784
A Vaillant combi boiler is a type of gas boiler that heats both your home and provides hot water on demand, all in one compact unit. They don't require a separate hot water storage cylinder ...Read more

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Buy this Boiler and SAVE 30% on a Vaillant Boiler Filter Protection Kit 22mm. Discount automatically applied at checkout.


All Boilers and Boiler Accessories must be installed by a Qualified Gas Safe Registered professional. Due to the weight of this item, assistance may be required with unloading and moving at point of delivery. We cannot accept the return of unwanted boilers if the box / packaging, or the security seal has been opened / broken (your statutory rights are not affected).

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A Vaillant combi boiler is a type of gas boiler that heats both your home and provides hot water on demand, all in one compact unit. They don’t require a separate hot water storage cylinder like system boilers do, which makes them space-saving and more efficient.

Features:

  • Instant hot water delivery in just 5 seconds - Meaning no need for storage tank or cylinder.
  • Wide modulation range of up to 1:6 – Ensuring low energy consumption and maximum efficiency.
  • Flame lift detection system – Enabling more efficient and quieter combustion.
  • Dedicated models available for LPG – Giving a solution for off-gas areas.
  • Stylish contoured case design with down flap – Making this a boiler that fits with the décor of any home.
  • Built-in-two-stage frost protection – Ensuring optimal performance all year round.
  • Extended guarantees available when installed by a Vaillant Advance partner – For total peace of mind.
  • Quiet Mark accreditation – Thanks to being ultra quiet whilst in operation.
  • Step by step wizard – For quicker ‘first time right’ set up and installation.
  • Compatible with aroTHERM air to water heat pump hybrid system – Making the perfect entry into renewable systems.

Technical data:

  • Brand - Vaillant
  • Range - ecoTEC Plus
  • Product Type - 835 ErP Combi Boiler
  • Wattage - 35kW
  • ErP Rating - A
  • Depth - 338mm
  • Width - 440mm
  • Height - 720mm
  • Weight - 36kg
  • Acoustic Performance - 47dB
  • Nominal Heat Output Range At 50°C To 30°C - 4.1-20.8kW
  • Nominal Heat Output Range At 80°C To 60°C -3.8 -19.3kW
  • Maximum Flow Temperature - 85°C
  • Flow Temperature Range - 30°C To 80°C
  • Flow Temperature Factory Setting - 75°C
  • Approximate Condensate Volume At 50°C To 30°C - 2.0ltr/hr
  • Maximum Horizontal Flue Length 60/100 - 12mtr
  • ErP Efficiency - 94%
  • Mounting - Wall Mounted

  • Manufacturer Code
    0010021822
  • Product Type
    835 ErP Combi Boiler
  • Width
    440mm
  • Range
    ecoTEC Plus
  • Material
    Stainless Steel
  • Colour
    White
  • Size
    10ltr
  • Depth
    338mm
  • Height
    720mm
  • Weight
    36kg
  • Acoustic Performance
    47dB
  • Wattage
    35kW
  • ErP Rating
    A
  • Brand
    Vaillant
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