Worcester Bosch 4000 18kw

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.