Key Information
- 30kW Output — Ideal for larger homes with higher heating demand
- Open Vent Heat Only Boiler — Designed to work with a hot water cylinder and cold water tank
- Compact Cupboard-Fit Design — Flexible installation in kitchens or utility areas
- Aluminium Heat Exchanger — Durable and efficient heat transfer
- Top and Rear Flue Options — Flexible siting in a wide variety of properties
- 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 430 Open Vent Heat Only Boiler
The Vaillant ecoFIT Sustain 430 Open Vent Heat Only Boiler is a compact yet powerful heating solution designed for homes with traditional open vent heating systems. As part of the ecoFIT Sustain 400 range, it delivers dependable performance while maintaining a cupboard-fit design that offers excellent flexibility when installing in modern properties.
Built with Vaillant’s trusted engineering and high-quality components, the ecoFIT Sustain 430 combines strong heating output with efficient operation and simple maintenance.
Powerful Heating for Open Vent Systems
With a 30kW output, the ecoFIT Sustain 430 is ideal for larger homes that require higher heating demand while operating with a separate hot water cylinder and cold water tank.
Despite its powerful output, the boiler maintains a compact cupboard-fit footprint, making it suitable for installation in kitchens, airing cupboards or utility spaces. Its lightweight design also helps simplify installation.
A high-specification aluminium heat exchanger provides efficient heat transfer while remaining durable and easy to maintain, helping support long-term performance.
Flexible Installation Options
The ecoFIT Sustain 430 offers flexible siting thanks to top and rear flue options, allowing installers to position the boiler in a wide variety of locations within the home.
The boiler supports flue lengths of up to 10m with a 60/100 flue system and up to 25m with an 80/125 flue, providing greater freedom when planning installation layouts.
These gas boilers are also fully compatible with Vaillant’s intelligent range of heating controls, enabling homeowners to optimise heating schedules and potentially reduce energy consumption.
Designed for Easy Installation and Servicing
The ecoFIT Sustain 430 has been designed to simplify installation and maintenance. The internal layout allows all key components to be accessed from the front, helping engineers carry out servicing quickly and efficiently.
A clear LED display with familiar Vaillant diagnostics provides easy visibility of system information and fault codes, even when the boiler is installed in less accessible areas.
Built with Quality Components
Vaillant has designed the ecoFIT Sustain range with reliability in mind. The boiler incorporates high-quality components engineered for long-term durability and consistent performance.
Combined with its efficient heat exchanger and robust construction, the ecoFIT Sustain 430 delivers dependable heating while helping keep maintenance requirements lower.
Order from PlumbNation Today
Choose the Vaillant ecoFIT Sustain 430 Open Vent Heat Only Boiler for powerful, efficient heating performance in homes with traditional open vent systems. Order today from PlumbNation for competitive pricing, expert advice and fast UK delivery.
