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Worcester Greenstar Combi 30Si Compact


IITC CODE Model Outputs:
7716130140 30kW     ( 30Si)



The all new Greenstar gas-fired Si Compact is the successor to the Greenstar Si combi boiler.

Ideal for apartments and small to medium sized properties with one bathroom, it has a host of performance-enhancing features, including the revolutionary WB7 heat exchanger which enables the appliances to deliver DHW flow rates of 10.2 and 12.3 l/min despite their compact size.

The new Greenstar Si Compact has been designed to make installation and commissioning easier and quicker and comes supplied with a unique wall-mounting jig which enables the installer to quickly pre-plumb all seven pipe connections without the boiler being on the wall.


10 year guarantee on primary heat exchanger.

Central heating output: 24kW
Domestic hot water flow rate: 12.3 litres per minute at 35 degree temperature rise (provided adequate mains water pressure is available)
Designed operational flow rate 10.7 litres per minutes at 40 degree temperature rise.

Efficiency 90.5% A

The Greenstar 30Si Compact is 90.5% efficient and is in the highest possible official efficiency category, SAP 2005 seasonal efficiency rating.

Features & Benefits.

  • A rated efficiency (SEDBUK 2005 value)
  • 10 year guarantee on primary heat exchanger and 5 year anti-scale guarantee on domestic hot water heat exchanger (subject to terms and conditions)
  • Can be installed in a standard kitchen cupboard without the need for ventilation
  • Split jig design for optimum lift weight (32.9kg)
  • The expansion vessel has a simple drop lock mechanism that connects directly onto the hydraulic unit
  • Ability to pre-plumb all 7 connections without the boiler being on the wall – gas, water, PRV & condensate connections
  • Robust wall mounting frame provided as standard allows space for pipes behind the boiler
  • LCD boiler display for operation status, commissioning features and diagnostics
  • EMS-BUS compatibility enables use with Worcester intelligent controls series




Greenstar Gas Boilers