Vaillant ecoFIT Pure 418 Open Vented Boiler 18kW

Vaillant ecoFIT Pure 418 Open Vented Boiler 18kW

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Product Code
109115060
The ecoFIT pure open vent boiler is a compact, high-performance heating solution designed for flexible installation in any home. Hand-built in Vaillant's award-winning Derbyshire manufacturing p...Read more

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The ecoFIT pure open vent boiler is a compact, high-performance heating solution designed for flexible installation in any home. Hand-built in Vaillant's award-winning Derbyshire manufacturing plant, it combines German engineering with UK manufacturing excellence for outstanding reliability, efficiency, and ease of maintenance.

Why Choose an Open Vented Boiler?

An open vent boiler, also known as a regular or heat-only boiler, is ideal for homes with a traditional heating system that includes a hot water cylinder and a separate cold water tank (usually in the loft). It provides strong water pressure and a steady supply of hot water, making it suitable for households with multiple bathrooms. It’s also an excellent choice for replacing older open vented boilers without major pipework changes.

Features:

  • Compact, cupboard-fit solution – Small footprint allows flexible siting, including inside kitchen cupboards.
  • Top and rear flue options – Provides greater installation flexibility for various property types.
  • Ultra-quiet operation – Quiet Mark certified for minimal noise disruption.
  • High-spec aluminium heat exchanger – Lightweight, durable, and designed for long-lasting efficiency.
  • Automatic purging assistance – Simplifies installation and maintenance.
  • Clear LED display – Ensures easy operation, even in dimly lit areas.
  • Easy maintenance – All components are accessible from the boiler front for quick servicing.
  • Recognisable Vaillant fault codes – Simplifies fault diagnosis for fast repairs.
  • Industry-leading flue lengths – Up to 10mtr flue length across all ecoFIT pure outputs for versatile siting.
  • 4-sided cooling and water agitation – Reduces stress on the heat exchanger for greater reliability and lower maintenance costs.
  • Compatible with Vaillant smart controls – Optimises energy efficiency and convenience, reducing energy bills.
  • ErP ‘A’ rated – High efficiency for heating and hot water, reducing energy costs.

Guarantee Options:

  • 2-year standard guarantee out of the box.
  • 10-year extended guarantee when installed by a Vaillant Advance installer with an Advance boiler protection kit.

Technical data:

  • Brand - Vaillant
  • Range - ecoFIT Pure
  • Product Type - 418 Open Vented Boiler
  • ErP Rating - A
  • Wattage - 18kW
  • Depth - 295mm
  • Width - 375mm
  • Height - 600mm
  • Weight - 22kg
  • Heat Exchanger Material - Aluminium
  • Mounting - Wall Mounted
  • Nominal Heat Output Range At 50°C To 30°C - 5.2-19.1kW
  • Nominal Heat Output Range At 80°C To 60°C - 5.0-18.2kW
  • Maximum Flow Temperature - 80°C
  • Flow Temperature Range - 10°C To 80°C
  • Flow Temperature Factory Setting - 75°C
  • Approximate Condensate Volume At 50°C To 30°C - 1.84ltr/hr
  • Modulation - 1:5 max/min
  • Maximum Heat Output For Water Generation - 25.2kW
  • Lowest Water Pressure To Operate Boiler - 0.3Bar
  • Gas Inlet Connection (Pipe Size) - 15mm
  • Heating Flow And Return Connections (Pipe Size) - 22mm
  • Hot And Cold Water Connections (Pipe Size) - 15mm
  • NOx Class - 5
  • NOx (En 15502-2-1) - 39mg/kWh
  • ErP Efficiency - 94%
  • ErP Decibel Rating (Sound Power) - 51dB(A)
  • Maximum Horizontal Flue Length 60/100 - 10mtr
  • Maximum Vertical Flue Length 60/100 - 10mtr
  • Maximum Horizontal Flue Length 80/125 - 25mtr
  • Maximum Vertical Length 80/125 - 25mtr

  • Manufacturer Code
    0010020402
  • Delivery Only
    No
  • Brand
    Vaillant
  • Range
    ecoFIT Pure
  • Style
    418
  • Product Type
    Open Vented Boiler
  • Material
    Aluminium
  • Colour
    White
  • Width
    375mm
  • Height
    600mm
  • Depth
    295mm
  • Weight
    22kg
  • IP Rating
    Unspecified
  • ErP Rating
    A
  • Noise Value
    51dB
  • Wattage
    18kW
  • Acoustic Performance
    51dB(A)
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Returns

Unfortunately this product cannot be returned due to it being perishable or made to your specific requirements or another reason highlighted in our terms and conditions. Please make sure you are certain of your quantity ordered and it’s the exact product you require.

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