Key Information
- 18kW Output — Suitable for small to medium-sized homes
- Open Vent Heat Only Boiler — Designed for systems with a hot water cylinder and cold water tank
- Compact Cupboard-Fit Design — Flexible installation in kitchens or utility spaces
- Aluminium Heat Exchanger — Durable and efficient heat transfer
- Top and Rear Flue Options — Greater flexibility when positioning the boiler
- Extended Flue Length Options — Up to 10m (60/100) or 25m (80/125)
- Clear LED Display — Easy-to-read diagnostics and system information
- Front Access Servicing Design — Simplifies installation and maintenance
- 2-Year Manufacturer Guarantee — Peace of mind
What's Included
- 1 x Vaillant ecoFIT Sustain 418 Open Vent Heat Only Boiler
The Vaillant ecoFIT Sustain 418 Open Vent Heat Only Boiler is a compact and reliable heating solution designed for homes using traditional open vent systems. Part of the ecoFIT Sustain 400 series, it combines efficient performance with a cupboard-fit design, offering flexibility when installing in kitchens, utility rooms or airing cupboards.
Built with Vaillant’s trusted engineering, the ecoFIT Sustain 418 provides dependable heating performance while remaining easy to install, maintain and operate.
Compact Boiler with Reliable Heating Output
With an 18kW output, the ecoFIT Sustain 418 is well suited to small and medium-sized homes that use a separate hot water cylinder and cold water storage tank as part of an open vent heating system.
The boiler’s compact cupboard-fit design ensures it can be installed neatly in confined spaces, while its lightweight construction helps simplify handling during installation.
A high-specification aluminium heat exchanger delivers efficient heat transfer while offering durability and ease of maintenance.
Flexible Installation Options
The ecoFIT Sustain 418 has been designed to provide maximum flexibility when positioning the boiler. Top and rear flue options allow installers to place the unit in a wide variety of locations throughout the home.
The boiler supports flue lengths of up to 10m with a 60/100 system and up to 25m with an 80/125 system, offering greater siting freedom during installation.
These gas boilers are also fully compatible with Vaillant’s intelligent heating controls, allowing homeowners to manage their heating more efficiently and potentially reduce energy usage.
Easy to Install and Maintain
Installation and servicing are straightforward thanks to the boiler’s practical design. The internal layout allows all key components to be accessed from the front, helping engineers carry out installation and maintenance quickly.
A clear LED display with familiar Vaillant diagnostics makes it easy to monitor the system and identify any faults during servicing.
Built for Long-Term Reliability
Vaillant has designed the ecoFIT Sustain range with high-quality components to provide dependable long-term performance. The robust construction and efficient heat exchanger help maintain reliable heating while reducing the need for frequent maintenance.
The boiler’s ErP A-rated efficiency also helps keep running costs lower for homeowners and tenants.
Order from PlumbNation Today
Choose the Vaillant ecoFIT Sustain 418 Open Vent Heat Only Boiler for reliable, efficient heating in homes with traditional open vent systems. Order today from PlumbNation for competitive pricing, expert advice and fast UK delivery.
