Key Information
- 34kW Output — Ideal for homes with higher heating and hot water demand
- Gas Combi Boiler — Provides heating and instant hot water from one unit
- Stainless Steel Heat Exchanger — Durable design for long-term performance
- Low NOx Modulating Burner — Lower emissions and improved efficiency
- High-Efficiency Grundfos Pump — Reduces energy consumption
- Push-Fit Flue System — Simplifies installation
- Removable Side Panels — Easier servicing and maintenance
- Large LED Display — Clear system information and fault diagnostics
- Hybrid System Ready — Compatible with Vaillant aroTHERM heat pump systems
- vSMART Control Compatibility — Smartphone control with weather compensation
- 1-Year Manufacturer Guarantee
What's Included
The Vaillant ecoTEC Sustain 34kW Gas Combi Boiler is a high-performance heating and hot water solution designed for modern homes and tenant properties. Built with Vaillant’s trusted engineering, it combines strong output with energy-efficient operation and installer-friendly design.
Part of the ecoTEC Sustain range, this boiler features a durable stainless steel heat exchanger and front-access servicing, helping reduce maintenance time while delivering dependable heating and instant hot water for everyday use.
Powerful Heating and Hot Water Performance
With a 34kW output, the ecoTEC Sustain 34 is ideal for homes with higher hot water demand, such as larger households or properties with multiple bathrooms. As a combi boiler, it provides both heating and hot water directly from the unit, eliminating the need for a separate hot water cylinder.
At the core of the system is a high-quality stainless steel heat exchanger, designed to provide efficient heat transfer, durability and long service life.
Efficient and Environmentally Conscious Design
The ecoTEC Sustain 34 incorporates several features designed to improve efficiency and reduce environmental impact. A modulating low NOx burner and fan help reduce emissions while maintaining efficient combustion.
The boiler also includes a high-efficiency Grundfos pump, which automatically adjusts to match system demand while using less energy.
As part of Vaillant’s commitment to lower-carbon heating solutions, the ecoTEC Sustain range has been tested as part of the HyDeploy project, demonstrating compatibility with natural gas blended with up to 20% hydrogen.
Easy Installation and Maintenance
The ecoTEC Sustain range of gas boilers has been designed to simplify installation and servicing. Removable side panels and a push-fit flue system provide easier access during installation and maintenance.
A new condensate trap with safety backup can be removed from the base of the boiler, helping engineers carry out servicing more efficiently.
The boiler also shares a familiar footprint and flue position with previous Vaillant ecoTEC models, allowing installers to replace older ecoTEC pro units quickly and easily using existing flue components.
Smart Controls and Simple Operation
The ecoTEC Sustain 34 is compatible with Vaillant’s full range of heating controls, including wired and wireless room thermostats and the vSMART smartphone app. These controls allow users to manage heating schedules and optimise energy use more efficiently.
A large illuminated blue-on-black LED display provides clear system information and fault codes, making it easy for engineers to diagnose issues and carry out maintenance.
The boiler can also be integrated with Vaillant aroTHERM air-to-water heat pump hybrid systems, offering a pathway toward renewable heating solutions.
Order from PlumbNation Today
Choose the Vaillant ecoTEC Sustain 34kW Gas Combi Boiler for powerful heating, efficient performance and dependable hot water delivery. Order today from PlumbNation for competitive pricing, expert advice and fast UK delivery.
