Worcester Bosch 15Ri Heat Only Boiler Including Flue & 15mm Scale Reducer

The Worcester Bosch 15Ri Heat Only Boiler Including Flue & 15mm Scale Reducer is a compact and highly efficient heating package designed for homes with a traditional open-vent or conventional heating system. Supplied with a horizontal flue kit and a 15mm Scale Reducer, this complete solution provides dependable central heating while helping to minimise limescale build-up in hard water areas, improving long-term efficiency and reliability. With its cupboard-fit dimensions and trusted Worcester Bosch engineering, the Greenstar 15Ri is an excellent replacement for older regular boilers.

Part of the renowned Worcester Bosch Greenstar Ri range, the 15Ri is designed to operate alongside a separate hot water cylinder and cold water storage tank. Its quiet operation, flexible installation options, and compatibility with Worcester Bosch heating controls make it an ideal choice for modernising traditional heating systems without changing the existing system layout.

Key Features

• 15kW Heat Only (Regular) Boiler
• Includes Horizontal Flue Kit
• Includes 15mm Scale Reducer
• Fuel Type: Natural Gas
• Designed for open-vent and conventional heating systems
• Requires a separate hot water cylinder and cold water storage tank
• ErP A Rated heating efficiency
• Up to 92% seasonal efficiency
• Compact cupboard-fit design
• Quiet operation
• Multi-directional flue compatibility
• Compatible with Worcester Bosch heating controls
• Solar compatible
• Simple fascia-mounted temperature controls
• Up to 10-Year manufacturer's warranty (subject to installation, registration, and manufacturer's terms)

Ideal for Traditional Heating Systems

The Worcester Bosch 15Ri Heat Only Boiler is ideal for small to medium-sized homes with an existing conventional heating system, separate hot water cylinder, and cold water storage tank. It offers a straightforward replacement for older heat only boilers while improving efficiency and reducing energy consumption.

The included 15mm Scale Reducer helps reduce limescale accumulation, making this package particularly suitable for homes located in hard water areas.

Reliable Central Heating Performance

With a 15kW central heating output, the Greenstar 15Ri delivers consistent and efficient heating for well-insulated small and medium-sized properties. As a Heat Only (Regular) Boiler, it is designed exclusively for central heating and works with a separate hot water cylinder to provide stored domestic hot water.

Its advanced condensing technology helps maximise efficiency while lowering fuel consumption and reducing heating bills.

Compact Design

Designed to fit neatly inside a standard kitchen cupboard, the Greenstar 15Ri provides exceptional installation flexibility without compromising performance.

Dimensions

• Height: 600mm
• Width: 390mm
• Depth: 270mm

The included horizontal flue and 15mm Scale Reducer complete the installation package while helping to protect the heating system over time.

Advanced Energy Efficiency

Rated ErP A with 92% seasonal heating efficiency, the Greenstar 15Ri uses advanced condensing technology to maximise heating performance while reducing energy consumption and carbon emissions. It also supports compatibility with solar thermal systems, offering additional flexibility for future energy-saving upgrades.

Smart Heating Control Compatibility

The Greenstar 15Ri is compatible with a range of Worcester Bosch heating controls, including EasyControl, allowing homeowners to optimise comfort, improve efficiency, and better manage heating schedules.

Reliable Performance & Easy Maintenance

Built to Worcester Bosch's renowned quality standards, the Greenstar 15Ri features a durable and installer-friendly design with simple controls and easy servicing access.

Its compact footprint and flexible flue options make installation straightforward for both replacement projects and new heating system installations.

Warranty & Peace of Mind

The Worcester Bosch 15Ri Heat Only Boiler Including Flue & 15mm Scale Reducer includes up to a 10-Year manufacturer's warranty when installed and registered in accordance with Worcester Bosch's warranty requirements, providing long-term confidence and dependable after-sales support.

Why Choose the Worcester Bosch 15Ri Heat Only Boiler Including Flue & 15mm Scale Reducer?

• Complete boiler, flue, and scale protection package
• Efficient 15kW heat only boiler
• Natural Gas compatible
• Designed for traditional heating systems
• Includes Horizontal Flue
• Includes 15mm Scale Reducer
• Compact cupboard-fit design
• Solar compatible
• Compatible with Worcester Bosch heating controls
• Up to 10-Year manufacturer's warranty