The Greenstar Si combi boilers are our mid-range appliances.
They’re suitable for apartments and small to medium sized 1 bathroom properties.
You can control both the hot water and central heating temperatures on a Greenstar Si boiler. There is also a range of optional controls available, offering you further comfort and flexibility.
For further peace of mind, every boiler in Worcester’s Greenstar gas and LPG condensing boiler range has been awarded a Which? Best Buy accreditation.
10 year guarantee on primary heat exchanger.
Central heating output: 24kW
The Greenstar 30Si is 90.1% efficient and is in the highest possible efficiency category, SAP 2005 seasonal efficiency rating.