The Worcester Bosch 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.

It has up to a 10 Year guarantee when installed by a Worcester Accredited Installer. Terms and conditions apply.

The wide power range helps to reduce gas consumption and lower energy bills and the innovative ‘Quick Tap’ water saving function helps you reduce water waste. The modern new design comes with an easy to use colour display and the boiler operates extremely well in low water pressure areas, ensuring powerful and warm showers.

It is one of the quietest combi boilers available, making it easy to live with and features wireless connectivity with the Bosch EasyControl. The Greenstar 4000 is suitable for small to medium homes.

Customers love the Greenstar 4000 as seen in the reviews;

‘EXCELLENT BOILER! Very pleased with my Worcester Bosch Greenstar 4000 30kw . Very efficient and very quiet! I have a 3 bedroom house and it serves all of my 9 radiators well. Excellent!’

‘Operation of Greenstar 4000. Boiler working well, as expected from a quality piece of engineering. Near end of October, yet to switch the heating due to high gas costs. But get me warm last winter. Really like control panel display, which is easy to navigate round, to check and change hot water and heating temperatures.’

‘Highly recommend this boiler I did considerable research into the most appropriate boiler for my needs, budget, life expectancy (many years) and habits but with an eye on the future of UK domestic gas supply and the likelihood of a manufacturer being able to provide adaptations. Worcester Bosch provide a good amount of information online. I chose the Greenstar 4000 and an installer from Which? Trusted Trader who could offer the extended 10 year guarantee. After 13 months and the first annual service, I am very pleased with the boiler and everything about it. It has performed faultlessly. The quality of equipment, accessories and finish are very high. The menus both on the boiler and the remote control are fairly easy to navigate. The water fill pressure tap is easy to locate and operate. I would recommend this boiler for reliability, comfort and convenience.’

‘Had a Worcester Bosch Greenstar 4000 fitted as a replacement to a 15+ year old boiler. It’s an extremely neat boiler and very quiet in operation. I was rather sceptical when told it would save a third on my energy bill but after a years use its saved well over a third. Completely satisfied and over the moon with it. Highly recommended.’