The Worcester Bosch Greenstar 4000 Natural Gas System Boiler is the ideal choice for small to medium homes seeking a reliable and efficient heating solution. With its A-rated energy efficiency, this boiler helps to keep your energy bills low while providing powerful, consistent heating.

Its Quiet Mark certification ensures that you enjoy the warmth without the noise, blending seamlessly into contemporary interiors with its modern design. The boiler features a clear, colour display that makes monitoring and control straightforward, and its wireless connectivity with smart thermostats offers convenient management from anywhere. With a robust 24kW power output, the Greenstar 4000 is built to keep your home comfortable and running smoothly through any weather.

• Power output: 24kW; ideal for small to medium homes
• Wireless connectivity with smart thermostats
• Quiet Mark certified for minimal noise during operation
• Contemporary design to suit stylish home interiors
• Easy-to-read colour display for simple control
• A-rated for top-tier energy efficiency
• Helps maintain low energy bills with efficient performance

When installed by a Worcester Bosch Accredited Installer with a Greenstar System Filter. The Greenstar 1000 and Greenstar 2000 guarantee is available as standard to both loyalty scheme members and non-WAI's, when fitted with any brand of system filter. Terms and conditions apply.