The Worcester Bosch Greenstar 4000 Natural Gas System Boiler (18kW) is expertly crafted for small to medium-sized homes, offering an impressive combination of performance and efficiency without breaking the bank. Its powerful heating capabilities come with the peace of mind of Quiet Mark certification, ensuring warmth without disruptive noise.

With a contemporary design, it seamlessly complements modern interiors. Effortless control is at your fingertips thanks to its clear colour display, while its A-rated energy efficiency helps keep energy bills in check. Plus, it's easily managed from anywhere by connecting wirelessly to a smart thermostat, providing unparalleled convenience and comfort.

• Power output: 18kW
• Designed for small and medium homes
• Quiet Mark certified for low noise operation
• Contemporary design suits stylish interiors
• Easy control with clear colour display
• A-rated for optimum energy efficiency
• Connects wirelessly to smart thermostats
• 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.