The Worcester Bosch Greenstar 18Ri Regular is a heat-only boiler that works with your existing hot water cylinder and cold water tank. It is a solid choice from Worcester Bosch, and you can see your fixed installed price online in a couple of minutes. See your fixed price in our online quote.
Key specs
| Spec | Worcester Bosch Greenstar 18Ri Regular |
|---|---|
| Boiler type | Regular (heat-only), condensing, wall mounted |
| Fuel | Mains gas |
| Heating output | 18 kW |
| Hot water flow rate | N/A (stored in a cylinder) |
| Efficiency | 92%, A-rated (ErP: A heating) |
| Manufacturer warranty | 5 years standard, extendable to 10 years with registration and annual servicing by an accredited installer |
| Dimensions (H x W x D) | 600 x 390 x 270 mm |
Who it suits
- Small to medium homes with up to 15 radiators.
- More output than the Greenstar 12Ri or 15Ri.
Why people choose it
- Compact: Fits kitchen or airing cupboards.
- Efficient: 92%, A-rated.
- Long cover: Up to 14 years depending on model when fitted by Boiler Central.
FAQs
How many radiators can the 18Ri run?
Up to 15.
What is the warranty?
5 years standard, extendable to 10 with an accredited installer and annual servicing.
Does it need a cylinder?
Yes. It is a regular boiler used with a cylinder and cold water tank.
Get your fixed price online
Answer a few quick questions about your home and current boiler. You’ll see a fixed installed price straight away and can book online.