The Worcester Greenstar 4000 30kW Combi Boiler is a high-efficiency, wall-hung boiler designed for small to medium-sized homes with strong hot water demand. Delivering up to 12.3 litres per minute, it provides reliable heating and consistent hot water performance, even in properties with lower water pressure.

Featuring a modern full-colour display and simple controls, it's easy to use day to day, while its wide modulation range helps improve efficiency and reduce energy usage. The compact design allows for cupboard-fit installation, making it ideal where space is limited.

Built with installer convenience in mind, it offers front access to key components and removable side panels for easier servicing. Quiet Mark approved and ErP A-rated, the Greenstar 4000 combines reliable performance with quiet operation and energy efficiency.