The Worcester Bosch Greenstar 4000 18kW is a high-efficiency system boiler ideal for medium-sized homes that need reliable heating and hot water performance. Combining Worcester Bosch’s trusted engineering with modern efficiency, it provides consistent warmth, low running costs, and long-term dependability.
Its sleek, compact design allows for flexible installation, fitting neatly into kitchens, airing cupboards, or utility areas. The Quiet Mark certification guarantees near-silent operation, while built-in frost protection ensures year-round reliability, even in colder conditions. With its A-rated efficiency, it helps reduce energy use and supports more sustainable home heating.
Backed by a 10-year parts and labour guarantee, the Greenstar 4000 18kW offers lasting peace of mind and excellent performance. For homeowners seeking a quiet, efficient, and durable heating solution from one of the UK’s leading boiler brands, the Worcester Bosch Greenstar 4000 18kW is a perfect choice.
Worcester Bosch Greenstar 4000 18kW System Total Home Bundle - IF4
Worcester Bosch
£4,115.00
- SKU:
- 120-1201-21
- Flue Product HZF:
- survprod-HZF-6
- Flue Product VFF:
- survprod-VFF-2
- Flue Product VF1/3:
- survprod-VF1-3-2
- Flue Product VF2/3:
- survprod-VF2-3-2
- Key Features 1:
- 10 year guarantee
- Key Features 3:
- Manufactured in the UK
- Product Features 1:
- High performance, control and efficiency
- Product Features 2:
- Precision heating to reduce your fuel bills
- Product Features 3:
- Perfect for small to medium sized homes with one bathroom
- Product Features 4:
- Worcester Bosch boilers rated 4.7 on Trustpilot
- Product Features 5:
- Heating technology at it's best
- kW Output:
- 18
- ERP Rating:
- A
- Energy Efficiency:
- 94
- Short Description:
- An ultra-quiet and reliable system boiler, ideal for small homes. Part of the award-winning Greenstar range, it features a modern design and simple controls. Enjoy lasting warmth and comfort with a 10-year guarantee.
- Sell Point:
- A rated, 94% efficiency. 20% hydrogen ready. Made in the UK
- Short Title:
- Worcester Bosch 4000 18kw Total Home Bundle
- Bundle:
- 120-1200-10,120-1200-08,120-1200-11
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