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Worcester Bosch Greenstar 15i System Gas Boiler

From: £2,149.00

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Worcester Bosch


Greenstar 15i System Gas Boiler

Is Condensing


Efficiency Rating


Band Rating

A Rating

LPG Compatible


Standard Warranty

Up to 7 Years

Central Heating Max. Output

15.3 kW


Wall Mounted

Flow Rate


ERP Rating

A Heat

Product Description

The Greenstar 15i system boiler is one of the most popular models by Worcester Bosch. It is a wall mounted system gas boiler, perfect for a medium or large sized home.

How efficient is the Greenstar 15i?

A 94% efficiency rating makes this an ErP A-rated boiler which could help to lower your heating bills.

Is the output rating suitable for my home?

A 15.3 kW output rating makes the Greenstar 15i an ideal heating system for properties with around 10 radiators.

Are any other options available in the range?

Whether you need a system boiler with a lower or higher output rating, the Greenstar i range includes models with outputs of 9 kW up to 30 kW.

Is a system boiler suitable for my home?

A system boiler is best suited to homes with 2 or more bathrooms. This is because they store domestic hot water in a cylinder, allowing them to meet higher demands.

How long is the warranty period?

The Greenstar 15i system gas boiler comes a warranty of up to 7 years when installed by a Worcester Bosch accredited installer, giving you added peace of mind that you have a reliable boiler.

What are the key features of the Greenstar 15i?

It is compatible with a wide range of accessories such as the Greenskies solar panels, combining this with the boiler would allow for better energy saving as well as reducing your bills down.

This boiler comes with simple controls and displays clear information and a wide choice helping to maximize the comfort and economy. The Greenstar comes with a low energy pump that can help to reduce the electrical usage as well as the large condensesure style siphon that is built into your boiler and means that your boiler has no risk of frost damaging the boiler if installed in a garage or loft.

How big is the Greenstar 15i?

The Greenstar i is a compact unit capable of fitting in a standard sized cupboard thanks to dimensions of 710 x 400 x 330 (HxWxD).