Worcester Greenstar 8000+ 45KW Combi Boiler

Worcester Greenstar 8000+ 45kW Combi Boiler

The Worcester Greenstar 8000+ 45kW Combi Boiler is one of the most powerful gas combination boilers available in the Greenstar 8000+ range. Designed for homes with high heating and hot water demands, it delivers exceptional performance while offering the reliability and advanced technology Worcester Bosch is known for. As a combi boiler, it provides both heating and instant hot water directly from one unit, removing the need for a separate cylinder or storage tank. This makes it an excellent choice for larger households that want strong hot water flow without sacrificing space. Engineered with high-efficiency condensing technology, the Greenstar 8000+ 45kW is A-rated for both heating and hot water, helping to reduce energy usage and keep running costs down. It also features a modern digital display, built-in frost protection and extremely quiet operation — perfect for installation in more central areas of the home. With its impressive hot water performance and robust output, this model is ideal for larger properties with multiple bathrooms or higher-than-average hot water requirements.

Key Features

High-performance 45kW combi boiler suitable for large homes Instant heating and hot water from a single compact unit A-rated efficiency for reduced running costs and eco-friendly operation Easy-to-use digital display for simple control and system monitoring Quiet operation, ideal for flexible placement within the home Built-in frost protection for year-round reliability Part of the premium Worcester Bosch Greenstar 8000+ range

Technical Specifications

Manufacturer: Worcester Bosch Model: 8000+ MPN: 7736702583 SKU: 94059 GTIN: 4069143014363 Performance: CH Output: 33 kW / 115,330 BTU Max DHW Output: 45 kW Hot Water Flow Rate: 18.0 L/min @ 35°C rise ErP Heating Rating: A Rated ErP Hot Water Rating: A Rated Dimensions: Height: 780mm Width: 440mm Depth: 365mm Weight: 49kg (57kg gross) Warranty: 8 Years (subject to manufacturer T&Cs)

FAQs

Is the 45kW model suitable for large homes?

Yes — its high output and strong hot water flow rate make it ideal for larger homes, especially those with multiple bathrooms.

Do I need a hot water cylinder for this boiler?

No. This is a combi boiler, so it provides instant hot water without the need for a cylinder or loft tank.

Is the boiler quiet when running?

Yes. The 8000+ range is designed for reduced noise, making it suitable for installation in kitchens, utilities or even internal cupboards.

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