Greenstar 4000 System Greenstar 4000 System Greenstar 4000 System
Greenstar 4000 System Greenstar 4000 System Greenstar 4000 System
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Greenstar 4000 System overview

Built on all 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.

With outputs of 12kW to 24kW, we’ve raised the bar with the speed and ease of installation, commissioning and servicing.

Encompassing features from our range-topping 8000 Style, informed by insights from installers and featuring real advances in siting flexibility, it takes what was the nations’ favourite boiler and makes it even better.

Our entire gas boiler range is able to run on a 20% hydrogen blend - so your customer can be confident it will run on gas for it’s lifetime. Learn more.

Standard Guarantee**

7 Year

With any Greenstar System Filter**

8 Year

With any Greenstar System Filter + £150*

10 Year  

*Terms and conditions apply. Excelerate members, who are non-Worcester Accredited Installers, can achieve these guarantee lengths with an additional £150 payment to Bosch Thermotechnology Ltd. via their Excelerate account after the boiler has been registered. Full terms and conditions can be found online via your Excelerate account. **Terms and conditions apply. For full terms and conditions please visit worcester-bosch.co.uk/extended-guarantee-tc.

Features & Benefits

100% planet friendly packaging
Front access to all key components
Longer flue lengths up to 12m (60/100)
Intuitive full-colour long-text display
500ml condensate siphon
Quiet operation from 42dB(A)
Modulates down to 1.9kW central heating output

Technical Details

Greenstar 4000 12kW System Greenstar 4000 15kW System Greenstar 4000 18kW System Greenstar 4000 21kW System Greenstar 4000 24kW System
Part number 7 733 600 377 7 733 600 379 7 733 600 381 7 733 600 383 7 733 600 385
ErP Efficiency Rating
A

A

A

A

A

ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet
LPG model available
Control Options *
EasyControl Compatible 1
Solar Compatible
Central heating output (kW) 12 15 18 21 24
Dimensions (mm) height x width x depth 724* x 400 x 310 724* x 400 x 310 724* x 400 x 310 724* x 400 x 310 724* x 400 x 310
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Related Accessories

Boiler Accessories Part number
Keyless Filling Link 7 716 192 610
Greenstar Intelligent Filling System 7 738 112 911 Installation Manual
Filling link 7 716 192 281

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