The Worcester Bosch
Greenstar 4000.
A 18kW system boiler from Worcester Bosch — installed in a single day by Gas Safe registered engineers.
Built for real homes.
Not showrooms.
The Worcester Bosch Greenstar 4000 18kW is designed to work quietly, efficiently, and reliably — for years to come.
- Quiet Operation
- 18kW heat output — System boiler
- 18kW central heating output
- 8 year manufacturer warranty
- 94% ErP efficiency rating
One price.
Everything covered.
No surprise add-ons. Your quote covers everything needed for a complete installation that meets all gas safety regulations, carried out by Gas Safe registered engineers.
Price and installation time varies depending on your installation requirements. Answer a few quick questions to get your exact fixed price.
Get your free quoteThe numbers
that matter.
Worcester Bosch Greenstar 4000 18kW
The Worcester Bosch Greenstar 4000 18kW is a modern system boiler designed to deliver dependable heating performance with minimal noise. Its full-colour display and simple push-button controls provide a more refined user experience than many traditional system boilers.
Quiet Mark certification, Bosch EasyControl compatibility and Worcester Bosch reliability make the Greenstar 4000 18kW a popular choice for homeowners looking for comfort and simplicity.
Don't let cost get
in the way of warmth.
Spread the cost of your new boiler over monthly payments that fit your budget. Available through iDeal4Finance — apply in minutes.
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