Worcester Greenstar 27kW Heat Only Gas Boiler ERP 7733600064

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Part of Worcester's biggest selling regular boiler range, the Greenstar 27Ri is one of the smallest Worcester condensing boilers and can be installed within a standard kitchen cabinet, or other areas where space is limited. The steel wall-mounting plate allows sufficient space for the flow and return pipes, which are supplied as standard, to go behind the boiler. This also allows sufficient space for pipes to go behind the boiler, making for a quick and easy installation. This boiler has simple control knobs as well as user friendly displays for ease of use allowing the user to easily set their desired heat output, providing greater temperature flexibility and improved all round efficiency, including a low electrical consumption while the unit is in standby mode. The Greenstar Ri also has low NOx and CO2 emissions, making the boiler a much more environmentally friendly.
  • Full 5 year guarantee on parts and labour
  • Extremely reliable and efficient heat exchangers
  • Compact dimensions can be installed in a standard sized kitchen cupboard
  • Robust steel wall mounting frame allows space for pipes behind the boiler
  • Digital and wireless programmers and room thermostats optimising boiler efficiency and fuel consumption
  • Low electrical consumption when the boiler is in standby mode
  • ErP A rated for heating
  • Built-in heating temperature control
  • Low NOx and CO2 emissions
  • Multi-directional fluing for siting flexibility

Technical specification

ERP Efficiency
ERP Rating
Boiler Type
Heat Only
270 mm
600 mm
390 mm
Maximum Horizontal Flue 100mm
6 m
Maximum Horizontal Flue 125mm
15 m
Maximum Vertical Flue 100mm
6 m
Maximum Vertical Flue 125mm
15 m
SEDBUK SAP 2009 Rating
CH Condensing Max Output
27 kW
Heat Output
27 kW
Noise Level
51 dBA
Nox Class
Solar Compatible
Years Guaranteed
Made To Order
Manufacturer Model No
Brand Name
Worcester Bosch
Range Description
Greenstar Ri


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