Greenstar 4000 System Greenstar 4000 System
Greenstar 4000 System Greenstar 4000 System

Greenstar 4000 System Range overview

Effortlessly efficient comfort

Designed to meet the needs of small and medium homes, without being loud or costly to run, the Greenstar 4000 is a big-time boiler with a superefficient rating. This is one to stand the test of time, warm you up whatever the weather, and keep your home running smoothly.

The 4000 can connect wirelessly to a smart thermostat for easy management and control wherever you are.

†Up to a 10 year guarantee when installed by a Worcester Accredited Installer or purchased via our FastTrack service. Terms and conditions apply.

Main features

  • Quiet Mark certified - Powerful heating​ without the noise
  • Contemporary - Designed for stylish home interiors
  • Easy to control – Clear colour display​ for simple monitoring and control
  • Efficient – A-rated for optimum energy efficiency to help keep bills low
How can I purchase a Worcester product?

Greenstar 4000 12kW System

ErP Efficiency Rating
A
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
12
Dimensions (mm) height x width x depth
724* x 400 x 310

Greenstar 4000 15kW System

ErP Efficiency Rating
A
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
15
Dimensions (mm) height x width x depth
724* x 400 x 310

Greenstar 4000 18kW System

ErP Efficiency Rating
A
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
18
Dimensions (mm) height x width x depth
724* x 400 x 310

Greenstar 4000 21kW System

ErP Efficiency Rating
A
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
21
Dimensions (mm) height x width x depth
724* x 400 x 310

Greenstar 4000 24kW System

ErP Efficiency Rating
A
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
24
Dimensions (mm) height x width x depth
724* x 400 x 310

Find a local installer

Each heating system needs custom designing. Find and contact a Worcester Accredited Installer in your area to book a home visit and get a free quote.

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