The Greenstar 4000 is perfect for small to medium-sized homes with one bathroom, it features a modern new design, an easy to use full-colour text display and it’s quiet too. The Greenstar 4000 has a wide power range to meet all of your heating and hot water needs, whilst doing so efficiently.

* Up to a 10 Year guarantee when installed by Tom Sutton Heating 

Worcester’s entire gas boiler range is able to run on a 20% hydrogen blend – so you can be confident it will run on gas for its lifetime.