The Worcester Bosch Greenstar 4000 Natural Gas System Boiler is the ideal solution for small to medium homes, offering exceptional efficiency and reliability. With its Quiet Mark certification, this boiler provides powerful heating without the noise, ensuring a peaceful home environment.

Its sleek, contemporary design seamlessly complements stylish interiors, while the clear colour display makes monitoring and control straightforward. The Greenstar 4000 is A-rated for energy efficiency, helping to keep energy bills low while maintaining a cosy atmosphere. Additionally, it can connect wirelessly to a smart thermostat, enabling easy management from anywhere. With a power output of 12kW, this boiler is built to deliver warmth and comfort across seasons.

• Power output: 12kW
• Ideal for small to medium homes
• Quiet Mark certified for low noise operation
• Connects wirelessly to smart thermostats
• Contemporary design for stylish interiors
• Easy control with clear colour display
• A-rated for optimal energy efficiency
• Helps keep energy bills low

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.