Worcester Greenstar 18 Ri ErP+ Regular

Worcester Greenstar 18 Ri ErP+ Regular Boiler

The Worcester Greenstar 18 Ri ErP+ Regular Boiler is a highly efficient, compact, and reliable heating solution designed for small to medium-sized homes. As part of the award-winning Worcester Bosch Greenstar range, this model combines performance, practicality, and efficiency — making it an excellent choice for both new installations and boiler replacements in existing systems.

Built with convenience in mind, the Greenstar 18 Ri fits neatly inside a standard kitchen cupboard, making it ideal for homes where space is at a premium. Its simple control knob makes operation straightforward, while the boiler’s modern design ensures quiet and dependable performance year-round.

Efficient and Powerful Heating

With a central heating output of 18 kW (equivalent to 60,000 BTU), the Worcester Greenstar 18 Ri ErP+ provides plenty of power to keep your home warm and comfortable. This regular (heat-only) boiler is designed to work with a hot water cylinder and cold water storage tank, making it ideal for homes with traditional heating systems and multiple outlets for hot water.

The Ri range is renowned for its efficiency and reliability, helping homeowners lower their energy bills while maintaining consistent, even heat throughout the property.

Compact, Reliable and Built to Last

Thanks to its compact dimensions, the Greenstar 18 Ri can be installed almost anywhere — including kitchens, lofts, and utility rooms. It also comes equipped with built-in frost protection, safeguarding your boiler from freezing conditions if located in colder areas such as a loft or garage.

For added peace of mind, Worcester Bosch provides a 5-year manufacturer’s warranty, ensuring long-term reliability and expert aftercare. The Greenstar 18 Ri can also be paired with Worcester Greenskies solar panels, helping to reduce your energy consumption and carbon footprint even further.

Key Features

Output: 18 kW (60,000 BTU)

Model Number: 7733600070

Compact Design: Fits inside a standard kitchen cupboard

Ease of Use: Simple boiler control knob

Frost Protection: Ideal for loft or garage installations

Compatible with Solar Panels: Works with Worcester Greenskies solar system for energy savings

5-Year Manufacturer’s Warranty

Ideal For

Small to medium-sized homes

Properties with traditional hot water storage systems

Homeowners looking for an easy replacement for an existing regular boiler

Off-grid or energy-efficient homes using solar heating support

Frequently Asked Questions (FAQs)
Is the Worcester Greenstar 18 Ri a combi boiler?

No, the Greenstar 18 Ri is a regular (heat-only) boiler. It requires a separate hot water storage cylinder and cold water tank, making it ideal for homes that already have this type of system in place.

Can the Greenstar 18 Ri be installed in a kitchen cupboard?

Yes, absolutely. The boiler’s compact design allows it to fit comfortably inside a standard kitchen cupboard, making it a great space-saving option.

Does this boiler have frost protection?

Yes, it comes with built-in frost protection, which helps prevent the boiler from freezing during colder months — particularly useful if the unit is installed in a garage or loft.

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