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 4.8 stars

1,216 reviews

 4.8 stars

1,216 reviews

Worcester Bosch Greenstar 12i System Gas Boiler

Worcester Bosch Greenstar 12i System Gas Boiler Boiler
Typical Price (inc VAT)
£908
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Total Cost
£1,708 - £2,208

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Make Worcester Bosch
Model Greenstar 12i System Gas Boiler
Is Condensing Condensing
Efficiency Rating 94%
Band Rating A Rated
LPG Compatible Yes
Standard Warranty Up to 7 Years
Central Heating Max. Output 12.2 kW
Mounting Wall mounted
Flow Rate N/A
Typical Price (inc VAT) £908
Typical installation Cost (inc VAT)* £500 - £1000
Sundries (Filter, Flue, etc) £300
Total Cost £1,708 - £2,208
ERP Rating A HEAT

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Product Description

The multi award winning Greenstar 12i system boiler is manufactured by Worcester Bosch.

How efficient is the Greenstar 12i?

The Worcester Bosch Greenstar 12i system boiler packs a punch with it's high energy efficiency rating of 94%. This makes it an ErP A-rated boiler which could help to lower your heating bills.

Is the output rating suitable for my home?

A 12 kW output rating makes this model well suited to homes with up to 10 radiators. As a system boiler, it stores domestic hot water in a cylinder so can meet the demands of properties with multiple bathrooms.

Are any other options available in the rang?

The Greenstar i range of system boilers has no shortage of options as it includes models with outputs from 9.2 kW right up to 30 kW. So, there's a heating system to match the needs of almost any home.

Is a system boiler the right choice for my home?

System boilers directly heat the heating system while warming domestic hot water in a cylinder. While this does mean that additional space is needed for a cylinder, they can meet higher demands for hot water. This makes the a perfect options for homes with 2 or more bathrooms.

How long is the warranty period?

A warranty period of up to 7 years is available so you'll be well covered after the installation.

What are the key features of the Greenstar 12i?

The high efficiency of this boiler is achieved thanks to a robust aluminium-silicon heat exchanger - exclusive to Worcester-Bosch boilers.

In addition, a heat exchanger with an extra large surface to allow exhaust gases to cool to around 55'C such that the latent heat contained in them can be used effectively rather than disappearing out of the boiler flue. This ability to extract as much useful heat as possible from each unit of gas consumed is what allows the Worcester-Bosch Greenstar 12i System to operate so efficiently. In doing so the Worcester-Bosch Greenstar 12i System also helps to reduce the amount of carbon dioxide (CO2), the main contributor to climate change, released into the atmosphere.

This award winning System boiler does require a hot water storage cylinder, but all the other major components including the expansion vessel, circulating pump etc. are built in to the boiler unit itself and are wired, plumbed, and tested as a complete system.

This boiler is also recommended by the Energy Saving Trust, which is a testament to the efficiency this boiler has achieved.

How big is the Greenstar 12i?

The Greenstar i System boilers are wall-mounted and designed to be compact, which makes them a good option for small to medium sized properties. This particular model measures 710 x 400 x 330mm (HxWxD).

Get quotes to supply and fit a new

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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Available

Worcester Bosch Greenstar 28CDi Compact Combi Gas Boiler 24 kw 94% Up to 10 years £1,000 VIEW
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Worcester Bosch Greenstar 21i System Gas Boiler 21.6 kw 94% Up to 7 years £1,034 VIEW
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Worcester Bosch Greenstar Camray 32 Regular Oil Boiler 32kw 94.2 5 years £2,072 VIEW
Worcester Bosch Greenstar Camray Utility 18 Regular Oil Boiler 18kw 93.1 5 years £2,072 VIEW
Worcester Bosch Greenstar Camray Utility 32 Regular Oil Boiler 32kw 94.2 5 years £2,030 VIEW
Worcester Bosch Greenstar Camray External 18 Regular Oil Boiler 18kw 93.1 5 years £2,096 VIEW
Worcester Bosch Greenstar Camray Utility 25 Regular Oil Boiler 25kw 93.2 5 years £2,030 VIEW
Worcester Bosch Greenstar Camray External 32 Regular Oil Boiler 32kw 94.2 5 years £2,030 VIEW
Worcester Bosch Greenstar Camray External 25 Regular Oil Boiler 25kw 93.2 5 years £1,608 VIEW
Worcester Bosch Camray Utility 32 System Oil Boiler 32kw 94.2 5 years £2,030 VIEW
Worcester Bosch Camray Utility 25 System Oil Boiler 25kw 93.2 5 years £1,608 VIEW
Worcester Bosch Greenstar 24i Junior Combi Gas Boiler 24kw 89.10% 7 years £800 VIEW
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Worcester Bosch Greenstar 34CDi Classic Combi Gas Boiler 34kw 92% 2 years £1,169 VIEW
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Worcester Bosch Greenstar 30CDi Classic Regular Gas Boiler 30kw 92% 2 years £1,100 VIEW
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Worcester Bosch Greenstar 35CDi Classic System Gas Boiler 35kw 92% 7 years £1,187 VIEW
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