Worcester Bosch Greenstar 27Ri Regular Boiler Vertical Flue is available in 8 models with CH outputs of 9kW, 12kW, 15kW, 18kW, 21kW, 24kW, 27kW and 30kW, making the range suitable for an even wider range of households with stored hot water systems.

• Extremely reliable and efficient innovative WB7 heat exchanger
• ErP A rated for heating
• Compact, it can be installed in a standard sized kitchen cupboard
• Robust steel wall mounting frame allows space for pipes behind the boiler
• Low electrical consumption when the boiler is in standby mode
• Low NOx and CO2 emissions
• Multi-directional fluing for siting flexibility
• 7 years guarantee extended to 8 years when installed with any Greenstar system filter