Worcester Greenstar i Combi Boiler 25i & 30i

Worcester Greenstar i Combi Boiler 25i & 30i

Worcester Greenstar i combi boiler

The Worcester Greenstar i combi boiler is a compact, wall-mounted gas boiler designed to provide central heating and domestic hot water from a single appliance. The Greenstar i combi range includes the 25i and 30i models, providing a choice of output for different residential heating and hot water requirements.

Both models use condensing technology and are designed for efficient heating and hot water production. Worcester Bosch’s technical specifications list an A-rated ErP seasonal space-heating efficiency rating of 93% for the Greenstar 25i and 30i, with an A rating for water heating.

The Worcester Greenstar i 25i & 30i Key Features

• Worcester Greenstar i combi boiler
• 25i and 30i models
• Gas-fired condensing technology
• A-rated space heating efficiency
• A-rated water heating efficiency
• Wall-mounted installation
• Compact 400mm-wide cabinet
• Central heating output up to 24kW
• Domestic hot water production
• Modulating control
• Condensing operation in domestic hot water mode
• Intelligent control compatibility
• Available in natural gas and LPG versions
• Suitable for replacement and new heating installations

Worcester Greenstar 25i

The Worcester Greenstar 25i provides up to 24kW central-heating output and a domestic hot water flow rate of 10.2 litres per minute at a 35°C temperature rise.

The boiler has a compact wall-mounted design measuring approximately 710mm high, 400mm wide and 330mm deep, making it suitable for installations where available space is limited.

Worcester Greenstar 30i

The Worcester Greenstar 30i also provides up to 24kW central-heating output, while offering a higher domestic hot water flow rate of 12.3 litres per minute at a 35°C temperature rise.

Like the 25i, the 30i has a compact 710mm × 400mm × 330mm maximum dimensional footprint.

Greenstar i Combi Boiler Specifications

Specifications are based on Worcester Bosch technical documentation. Always confirm the exact model, fuel type and current specification before ordering.

Efficient Heating and Hot Water

The Greenstar i is designed as a combination boiler, meaning it heats domestic hot water directly when there is a demand rather than requiring a separate conventional hot water storage cylinder.

Worcester Bosch describes the Greenstar i as a wall-mounted combi range designed to provide both heating and hot water, with the 25i and 30i offering different domestic hot water outputs and flow rates.

Compact Wall-Mounted Design

The Greenstar i’s compact dimensions make it practical for installations where space is limited. The boiler measures approximately 400mm wide and 710mm high, with a maximum depth of 330mm.

The compact format can make the Greenstar i suitable for kitchens, utility areas and other installations where a wall-mounted boiler is preferred.

Heating Controls

The Greenstar i combi range is compatible with a selection of Worcester controls, including Comfort and RF control options. Worcester Bosch’s documentation also identifies compatibility with its intelligent control options.

Natural Gas and LPG Options

Greenstar i combi models are available in natural gas and LPG versions. The correct fuel configuration must be selected for the intended installation, and the appliance must be installed in accordance with the manufacturer’s requirements and applicable local regulations.

Applications

The Worcester Greenstar i combi boiler can be suitable for:

• Houses
• Apartments
• Flats
• Residential developments
• Replacement boiler projects
• New heating installations
• Properties requiring combined heating and hot water
• Smaller residential heating systems

The correct boiler size should always be selected according to the property’s calculated heating and hot water requirements.

Why Choose the Worcester Greenstar i?

The Worcester Greenstar i combi boiler combines central heating and domestic hot water production in one compact wall-mounted appliance. The 25i and 30i models provide different domestic hot water capacities while maintaining up to 24kW central-heating output.

Its A-rated efficiency, compact dimensions, condensing technology and established Worcester Bosch platform make the Greenstar i a practical option for residential heating projects.

Buy Worcester Greenstar i Combi Boilers

Euro Fuel Supply supplies Worcester Greenstar i combi boilers for trade customers, installers, heating contractors, developers and wholesale buyers.

Contact Euro Fuel Supply for wholesale pricing, availability, product enquiries and delivery options across Europe.

Before purchasing, confirm the required model, fuel type, heating output, installation requirements and applicable regulations with a suitably qualified heating professional. Installation and commissioning should follow the manufacturer’s instructions.

Frequently Asked Questions

What is the Worcester Greenstar i combi boiler?

The Worcester Greenstar i is a wall-mounted gas condensing combination boiler designed to provide central heating and domestic hot water from one appliance.

What models are available in the Greenstar i combi range?

The Greenstar i combi range covered by the manufacturer’s technical documentation includes the Greenstar 25i and Greenstar 30i.

What is the output of the Worcester Greenstar 25i?

The Greenstar 25i provides up to 24kW central-heating output and a domestic hot water flow rate of 10.2 litres per minute at a 35°C temperature rise.

What is the output of the Worcester Greenstar 30i?

The Greenstar 30i provides up to 24kW central-heating output and a domestic hot water flow rate of 12.3 litres per minute at a 35°C temperature rise.

Is the Worcester Greenstar i an A-rated boiler?

Yes. Worcester Bosch’s technical data lists an A / 93% ErP seasonal space-heating efficiency rating for the 25i and 30i, together with an A rating for water heating.

Does the Greenstar i require a hot water cylinder?

No. As a combi boiler, the Greenstar i heats domestic hot water directly from the mains when there is demand, so a separate conventional hot water storage cylinder is not normally required.

What are the dimensions of the Greenstar i?

The Greenstar 25i and 30i are approximately 710mm high, 400mm wide and 330mm deep at maximum.

Is the Greenstar i available for LPG?

Yes. Worcester Bosch technical documentation lists LPG versions of the Greenstar 25i and 30i.

Can I buy Worcester Greenstar i boilers wholesale?

Yes. Euro Fuel Supply offers commercial and wholesale enquiries for heating products. Contact the sales team for current pricing, availability and European delivery options.

Is the Worcester Greenstar i suitable for every property?

No boiler should be selected solely by model name or output. The required heating and hot water capacity should be calculated for the individual property, and the installation should be assessed by a suitably qualified heating professional.