The Vaillant ecoFIT Pure 630 System Boiler (0010020399) is a high-performance, energy-efficient heating solution designed for homes with high heating and hot water demands. With a powerful 30kW output and an ErP A-rated efficiency rating, this natural gas system boiler works with an unvented hot water cylinder to provide consistent heating and strong hot water performance when multiple taps and showers are in use.
Featuring Vaillant technology including a 1:4.9 modulation ratio, the ecoFIT Pure 630 automatically adjusts its heat output to match heating demand. Its compact, lightweight design and ultra-quiet operation make it suitable for wall-mounted installation, including kitchen cupboards and utility rooms. Rear, horizontal and vertical flue options provide additional installation flexibility for both retrofit and new installations.
30kW Output
ErP A-Rated
1:4.9 Modulation
Natural Gas
Up to 10-Year Warranty
Key Highlights
10 Years
Maximum Warranty
Applications & Suitability
- Large homes with high heating and hot water demands
- Properties with multiple bathrooms requiring hot water from an unvented cylinder
- Homes where multiple taps and showers may be used simultaneously
- Retrofit and new installation projects
- Kitchen cupboard and utility room installations
- Wall-mounted boiler installations where compact equipment is preferred
Key Specifications
| Product Code |
0010020399 |
| EAN / Barcode |
4024074778999 |
| Brand |
Vaillant |
| Type |
System Boiler |
| Output |
30kW |
| Fuel Type |
Natural Gas |
| Efficiency Rating |
ErP A-Rated |
| Modulation Ratio |
1:4.9 |
| Hot Water Cylinder Required |
Yes – Unvented Hot Water Cylinder |
| Noise Level |
Ultra-Quiet Operation |
| Flow Temperature Range |
Adjustable for Precise Heating Control |
| Installation |
Wall-Mounted; Suitable for Retrofit or New Installations |
| Flue Options |
Rear, Horizontal and Vertical |
| Compact Design |
Fits in Standard Kitchen Cupboards |
| Warranty |
Up to 10 Years with qualifying installation requirements |
What Is a System Boiler?
A system boiler connects directly to the mains water supply and works with an unvented hot water cylinder to store and deliver hot water. Unlike a combi boiler, a system boiler installation uses a separate hot water cylinder, making it suitable for properties where multiple taps and showers may need to operate at the same time.
The ecoFIT Pure 630 features a built-in pump and expansion vessel, helping reduce the need for additional external components as part of the boiler installation.
Powerful 30kW Heating Output
With a 30kW output, the Vaillant ecoFIT Pure 630 is designed for homes with high heating and hot water demands. Its system boiler configuration works with an unvented hot water cylinder to support hot water requirements across properties with multiple outlets.
- 30kW heating output
- Designed for high heating and hot water demands
- Suitable for larger homes
- Works with an unvented hot water cylinder
Intelligent 1:4.9 Modulation
The ecoFIT Pure 630 features a 1:4.9 modulation ratio, allowing its heat output to adjust according to heating demand. This intelligent modulation is designed to optimise boiler performance and help reduce unnecessary energy use.
Modulation Ratio: 1:4.9
A-Rated Energy Efficiency
The Vaillant ecoFIT Pure 630 has an ErP A-rated efficiency classification. Its high-efficiency specification makes it a suitable choice for homeowners looking for an energy-efficient natural gas heating system.
Compact & Lightweight Installation
The ecoFIT Pure 630 has a compact, lightweight design intended for wall-mounted installation. Its dimensions allow it to fit in standard kitchen cupboards, while its compact format also makes it suitable for utility rooms and other space-conscious installation locations.
Flexible Rear, Horizontal & Vertical Flue Options
The ecoFIT Pure range supports rear, horizontal and vertical flue options, providing flexibility when planning the boiler installation. The rear flue option can be particularly useful where the installation layout requires an alternative flue arrangement.
- Rear flue option
- Horizontal flue option
- Vertical flue option
Ultra-Quiet Operation
The Vaillant ecoFIT Pure 630 is designed for ultra-quiet operation and is stated as QuietMark certified. This makes it suitable for installations where minimising boiler noise is an important consideration.
Up to 10-Year Warranty
The ecoFIT Pure 630 is available with a warranty of up to 10 years when installed with a Vaillant Boiler Protection Kit and fitted by a Vaillant Advance Engineer, subject to the stated qualifying installation requirements.
Up to 10 Years
Warranty with qualifying installation requirements
Ideal For
- Large homes with high heating and hot water demands
- Properties with multiple bathrooms
- Homes requiring a system boiler and unvented hot water cylinder
- Retrofit heating installations
- New heating system installations
- Kitchen cupboard and utility room installations
- Installations requiring flexible rear, horizontal or vertical flue options
- Homeowners looking for an A-rated, compact and ultra-quiet natural gas system boiler
Frequently Asked Questions
What type of boiler is the Vaillant ecoFIT Pure 630?
The Vaillant ecoFIT Pure 630 is a 30kW natural gas system boiler.
Does the ecoFIT Pure 630 require a hot water cylinder?
Yes. As a system boiler, the ecoFIT Pure 630 works with an unvented hot water cylinder for hot water storage and delivery.
What is the output of the Vaillant ecoFIT Pure 630?
The ecoFIT Pure 630 has a 30kW output, making it suitable for homes with high heating and hot water demands.
What is the modulation ratio?
The boiler has a 1:4.9 modulation ratio, allowing the heat output to adjust according to heating demand.
What fuel does the ecoFIT Pure 630 use?
The Vaillant ecoFIT Pure 630 is specified for Natural Gas.
What flue options are supported?
The ecoFIT Pure 630 supports rear, horizontal and vertical flue options.
Is the Vaillant ecoFIT Pure 630 energy efficient?
Yes. The boiler has an ErP A-rated efficiency classification.
How long is the warranty?
The ecoFIT Pure 630 has a warranty of up to 10 years when installed with a Vaillant Boiler Protection Kit and fitted by a Vaillant Advance Engineer, subject to the stated qualifying requirements.
Vaillant ecoFIT Pure 630 System Boiler
The Vaillant ecoFIT Pure 630 System Boiler (0010020399) combines a powerful 30kW output, ErP A-rated efficiency, 1:4.9 modulation, ultra-quiet operation and flexible rear, horizontal and vertical flue options. Designed for system boiler installations with an unvented hot water cylinder, its compact and lightweight wall-mounted design makes it suitable for large homes, retrofit projects, new installations, kitchen cupboards and utility rooms.
Order the Vaillant ecoFIT Pure 630
Choose the 0010020399 for a compact, powerful and energy-efficient 30kW system boiler from Vaillant.
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