Vaillant EcoTec Plus 635 System Boiler | Includes Installation

Vaillant ecoTEC Plus 635 System Boiler

The Vaillant ecoTEC Plus 635 System Boiler is a high-efficiency, A-rated gas boiler designed for larger homes with high hot water demands. Unlike a combi boiler, it works with a separate hot water cylinder. As a result, it ensures strong water pressure and consistent heating, even when multiple taps or showers are in use. Furthermore, with its advanced condensing technology, quiet operation, and smart thermostat compatibility, the ecoTEC Plus 635 is a reliable and energy-efficient choice for modern households.

For more details on the full boiler range, visit the
official Vaillant ecoTEC Plus System Boiler range.
In addition, you can pair this boiler with one of our flexible
HeatCover plans for long-term protection and peace of mind.

Key Features:

✅ 35kW Output – Ideal for large homes with multiple bathrooms.
✅ A-Rated Efficiency – Uses condensing technology to maximise fuel efficiency and lower energy bills.
✅ Works with a Separate Hot Water Cylinder – Provides high hot water flow rates, perfect for busy family households.
✅ Quiet Mark Certified – Offers ultra-quiet operation, ensuring minimal disruption.
✅ Stainless Steel Heat Exchanger – Improves durability and enhances long-term performance.
✅ Smart Thermostat Compatible – Works with Vaillant’s vSMART™, Nest, Hive, and other smart heating controls.
✅ Compact & Stylish Design – Fits neatly into utility rooms or airing cupboards.
✅ User-Friendly Controls – Intuitive LCD display for quick adjustments and monitoring.

Why Choose the Vaillant ecoTEC Plus 635 System Boiler?

• Ideal for Large Homes – It ensures a steady supply of hot water across multiple bathrooms.
• Energy Efficient & Cost-Effective – Consequently, it helps reduce energy bills while maintaining strong performance.
• Quiet & Reliable – Moreover, its low-noise operation and robust components guarantee long-lasting use.
• Smart Home Ready – In addition, it integrates with modern smart thermostats for precise temperature control.

The Vaillant ecoTEC Plus 635 System Boiler is, therefore, an excellent choice for larger households needing a powerful, efficient, and quiet heating solution. For extra protection, combine it with one of our HeatCover protection plans.

Our premium range boilers come with:

• Standard horizontal flue
• Appropriate flush of your system
• Corrosion inhibitor
• Condense pipework installation
• Programable room thermostat
• Registration with local authorities and manufacturers