Super quiet powerhouse

With plenty of power, the Greenstar 4000 packs a punch and makes installation a dream.

Why install the Greenstar 4000?

Guaranteed

Guaranteed

Offer up to 10 years peace of mind†

SimpleSwitch

SimpleSwitch

With Greenstar i, ​i Junior and Si

Flexible

Flexible

Pre-piping jig and rear​ piping as standard

4000 combi

Easy installation

Built on the tried, tested and much-loved features of the Greenstar i, the Greenstar 4000 is instantly familiar and yet totally transformed in appearance, performance​ and installer plus points.​

​Available as combi (25-30kW) and system (12-24kW), a key feature of the Greenstar 4000 is the front cover which can be removed by simply loosening two screws, as well as the right-hand side panel which can also be removed for easy access.

SimpleSwitch

SimpleSwitch refers to sharing the same positions for the top and bottom wall-frame screws, the pipework positioning, PRV, siphon and flue. This saves a significant amount of time when replacing a Greenstar i, i Junior or Si boiler.

SimpleSwitch
Pre-piping jig

Pre-piping jig

The wall-frame enables pre-piping for all pipe connections. This includes the condensate and PRV before the boiler is hung, making installation easier and quicker. Space for rear piping comes as standard, without the need for an additional spacer frame.​

Control key

The Greenstar 4000 is compatible with our industry-first ‘RF key’ slot-in receiver, which provides wireless RF communication between the boiler and our controls. This enables you to quickly and easily fit our wireless Bosch EasyControl, Comfort+ I RF and Comfort+ II RF.

Control key
Intelligent Filling System

Intelligent Filling System

The Greenstar 4000 combi variant is compatible with our Greenstar Intelligent Filling System. Its unique software ensures the boiler maintains optimum pressure and recognises a significant or sudden leak in the system. It’ll prevent the boiler from overfilling and will alert the homeowner if the heating system is losing too much pressure.

Boilers made better

Boilers made better

To learn more about the 4000 and our range of boilers, including, technical details, click the link below

Trade-rated training

Trade-rated training

Born from 35+ years of experience, our renowned training programme offers hands-on training for our entire product range.

Installer Brochure

Download our Greenstar 4000 installer brochure

Consumer One Pager

Download our Greenstar 4000 consumer one page flyer

Installation Manual

Download our Greenstar 4000 installation manual

Operating Instructions

Download the operating instructions for the Greenstar 4000