Key Information:

• Wide power range helps to reduce gas consumption and lower energy bills
• Innovative 'Quick Tap' water saving function helps you reduce water waste
• The modern new design comes with an easy to use colour display
• Operates extremely well in low water pressure areas, ensuring powerful and warm showers
• One of the quietest combi boilers available, making it easy to live with
• Features wireless connectivity with the Bosch EasyControl
• Instantaneous hot water, always available
• Suitable for small to medium homes
• ErP rating: A

What's Included:

• Worcester Bosch Greenstar 4000 25kW Combi Gas Boiler - 7733600371

The Greenstar 4000 25kW Combination Boiler is the direct upgrade for its predecessor the Greenstar 25i and is most suited to small to medium sized homes with one bathroom. It features a modern new design, a full colour text display that is easy to use and it is exceptionally quiet too. The Greenstar 4000 has a wide power range to meet all of your heating and hot water needs, whilst doing so efficiently.

Modern, efficient design

Stylish and efficient, the Worcester Bosch Greenstar 4000 25kW Combi Gas Boiler really has it all. It's compact but has all the features needed to be cost-effective, including a wide modulation range designed to optimise efficiency when heating demand is low.

User-friendly controls

The boiler is easy to use thanks to the clear, intuitive, full-colour long-text display.

Low noise levels

This boiler is perfect for small spaces ,as while it's highly efficient, it's also very quiet. In fact, it's one of the quietest combi boilers available, emitting up to 45 dB (A).

Easy installation

The Worcester Bosch Greenstar 4000 25kW Combi Gas Boiler is particularly easy to install if you're replacing a Worcester i system models, as it comes with a pre-piping jig offering rear piping as standard. What's more, there's flexibility of siting provided by long flue lengths (up to 12 m with 60 mm/100 mm flues), and a 500 ml integrated condensate siphon to reduce the risk of freezing!

Generous guarantee

With Worcester Bosch, there's no need to worry about daily wear and tear or unfortunate events. This boiler boasts an impressive 7-year guarantee, which is extended to 8 years when installed with any Greenstar system filter.