The Vaillant ecoFit Pure 418 open vent boiler is a compact and highly efficient heat-only boiler designed as an ideal replacement for traditional open-vented heating systems. It provides reliable performance, excellent efficiency, and simple controls, making it a great option for homeowners upgrading an older boiler while keeping their existing hot water cylinder and cold water tank setup.
With its compact dimensions and flexible installation options, the ecoFit Pure 418 can be fitted in a variety of locations, including kitchen cupboards and utility rooms. The boiler also features top or rear flue options, giving installers greater flexibility when installing the flue system.
Compatible with the full range of Vaillant controls and accessories, this boiler can be integrated into a modern heating system that is efficient, easy to use, and built for long-term reliability.
Key Features & Benefits
Compact Size for Flexible Installation
Ideal Upgrade for Open Vented Heating Systems
Easy to Install and Operate
High Efficiency Performance
Top or Rear Flue Options
Compatible with Vaillant Controls and Accessories
A Rated for Heating Efficiency
2 Year Warranty (Up to 7 Years When Installed by a Vaillant Advance Installer)
Key Specifications
Product: Vaillant ecoFit Pure 418 (ErP) Open Vent Boiler
GTIN: 4024074779026
Product Type: Gas Open Vent Boiler
Model: ecoFit Pure
Central Heating Output: 18kW (61,000 BTU)
ErP Heating Rating: A Rated
Gross Weight (Including Packaging): 34kg
Net Weight: 22kg
Height: 600mm
Width: 375mm
Depth: 295mm
Warranty: 2 Years (Up to 7 Years with Vaillant Advance Installer, Subject to T&Cs)
Is This the Right Boiler for Your Home?
The ecoFit Pure 418 is designed for properties that use a traditional open vented heating system with a separate hot water cylinder and cold water tank. It is an excellent replacement for older heat-only boilers and provides improved efficiency while working with your existing system setup.
FAQs
What is an open vent or heat-only boiler?
A heat-only boiler works with a hot water cylinder and a cold water tank, usually located in the loft, to provide heating and hot water.
What size property is an 18kW heat-only boiler suitable for?
An 18kW heat-only boiler is typically suitable for medium-sized homes depending on insulation levels and heating demand.
Can this boiler be installed in a cupboard?
Yes, the compact size and flexible flue options make it suitable for installation in a kitchen cupboard or utility space.
Absolutely. Check availability at your nearest branch during checkout or contact us directly.
Do you offer bulk pricing or trade discounts?
Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.
What if the product arrives damaged?
Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.
How fast is the delivery time?
Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.
What is the Return Policy?
We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.
Over 35 Years of Trading
+£3M Stock Value
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10 Branches Across London & South East
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