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MPN: 7733600381

Worcester Greenstar 4000 18kW System

Worcester Greenstar 4000 18kW System


Regular price £1,290.60 Excl. VAT
£1,548.72 Incl. VAT
Sale price £1,290.60 Excl. VAT
£1,548.72 Incl. VAT
Regular price
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Product Information

Worcester Greenstar 4000 18kW System Boiler

The Worcester Greenstar 4000 18kW System Boiler is the direct upgrade of the Greenstar 18Ri, designed for small to medium-sized homes with one bathroom. Compact, wall-mounted, and modern in design, this system boiler is highly efficient, quiet, and packed with user-friendly features to make heating and hot water management simple and effective.

Efficient Heating and Hot Water

With a wide power range and ErP A-rating, the Greenstar 4000 18kW ensures efficient heating while helping to reduce gas consumption and lower energy bills. The boiler is suitable for homes with a hot water storage cylinder, making it ideal for properties with one bathroom where instant hot water from a combi boiler may not be sufficient.

Modern Features for Easy Operation

This boiler features a full-colour text display for straightforward operation, while its quiet design ensures minimal disruption. For modern smart home integration, the Greenstar 4000 18kW supports wireless connectivity with the Bosch EasyControl, giving you full control of your heating system from anywhere. Additionally, it is compatible with Greenskies solar panels, helping to further reduce energy costs and environmental impact.

Key Features & Benefits

Heat output: 18kW – ideal for small to medium-sized homes ErP A-rated efficiency – reduces fuel costs and carbon footprint Quiet operation – one of Worcester’s quietest system boilers Wireless connectivity – compatible with Bosch EasyControl Easy-to-use full-colour display – intuitive interface for all settings Compatible with hot water storage cylinders – ideal for homes with one bathroom Greenskies solar panel compatible – supports sustainable energy use Compact wall-mounted design – dimensions: 724 x 400 x 310mm (HxWxD) 7-year manufacturer guarantee – for peace of mind

Technical Specifications

Brand: Worcester Bosch Model: Greenstar 4000 18kW System (7733600381) Boiler Type: System Boiler Fuel Type: Natural Gas Heat Output: 18kW Mounting: Wall Dimensions (HxWxD): 724 x 400 x 310mm Colour: White Weight: 30.6kg ErP Rating: A EAN: 4057749856708 Product Code: PN183938

FAQs

Is this boiler suitable for small homes?

Yes – with an 18kW output, it is ideal for **small to medium-sized homes** with a single bathroom.

Can it be used with solar panels?

Yes – the Greenstar 4000 18kW is compatible with **Greenskies solar panels** to help reduce energy costs.

How long is the warranty?

The boiler comes with a **7-year manufacturer’s guarantee** for complete peace of mind.

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Documentation

Worcester Greenstar 4000 18kW System

£1,290.60

Can I collect this product from a local branch?

Absolutely. Check availability at your nearest branch during checkout or contact us directly.

Do you offer bulk pricing or trade discounts?

Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.

What if the product arrives damaged?

Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.

How fast is the delivery time?

Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.

What is the Return Policy?

We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.