Key Information:

• Wide power range helps to reduce gas consumption and lower energy bills
• The modern new design comes with an easy to use colour display
• Our quietest system boiler, making it easy to live with
• Quiet operation from 42 dB (A)
• Suitable for homes where the heating system includes a hot water storage cylinder
• ErP rating: A

What's Included:

• Worcester Bosch Greenstar 4000 24kW System Gas Boiler - 7733600385

The Greenstar 4000 24kW System Boiler is the direct upgrade for its predecessor the Greenstar 21Ri and is most suited to medium sized homes with one or two bathrooms. 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.

Impressive efficiency

While the Greenstar 4000 has a compact design, it's incredibly efficient, and, thanks to a wide power range, helps to reduce gas consumption and lower energy bills

Quiet operation

The Greenstar 4000 is one of the quietest system boilers on the market, making it incredibly easy to live with in an enclosed space, like a kitchen.

Easy to install

If you're replacing a Worcester I System, the Greenstar 4000 serves as the perfect replacement, with pre-piping jig offering rear piping as standard.