• speech bubble icon Get the best quotes, fast!
  • pin icon Over 5,000 tradespeople across the UK
  • checkbox icon Gas Safe registered installers
Need a new boiler? Get FREE no-obligation quotes now! The smarter way to find trustworthy heating engineers!
Get FREE no-obligation quotes now!
  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe trusted companies
The smarter way to find trustworthy heating engineers

What kind of fuel does your boiler use?

Filter boilers

Fuel type

Boiler type

Manufacturer

Worcester Bosch Greenstar 12i System Gas Boiler

Worcester Bosch gas boiler prices and reviews - typically £850

Boiler Details

Worcester Bosch Greenstar 12i System Gas Boiler Boiler
Typical price (inc VAT)
£850
Typical installation costs (inc VAT)*
£500 - £1,000

Like this boiler?

Get a quote to supply & fit this boiler

Make Worcester Bosch
Model Greenstar 12i System Gas Boiler
Is Condensing Condensing
Efficiency Rating 94%
Band Rating A Rated
LPG Compatible Yes
Standard Warranty 2 Years
kW Options 12kW
Mounting Wall mounted
Flow Rate N/A
Typical price (inc VAT) £850
Typical installation costs (inc VAT)* £500 - £1,000
ERP rating A HEAT

Like this boiler?

Get a quote to supply & fit this boiler

Product Description

The multi award winning Worcester Greenstar range belongs to the highly successful Bosch group.

The Worcester-Bosch Greenstar 12i System boiler packs a punch with it's high energy efficiency rating of 94 per cent.

It manages to achieve this by employing a robust aluminium-silicon heat exchanger exclusive to Worcester-Bosch.

The extra large surface area of the heat exchanger allows 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) gas the main contributor to global warming 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 allows the appliance to be efficient, reliable and easy to install.

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

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.

Their size also allows for them to be fitted in a variety of places.

The i System boilers are compatible with a wide range of optional digital controls, like many other boilers within the Greenstar brand.

These boilers are compatible with Greenskies solar panels and are also kind to the environment due to their low NOx and CO2 emissions.

The i System boiler range also offers:

[x] Greenstar 15i System - a central heating output of 15kW with an efficiency rating of 94 per cent.

[x] Greenstar 18i System - a central heating output of 18kW and is 94 per cent efficient.

[x] Greenstar 24i System - this one has a central heating output of 24kW and is 94 per cent efficient.

Get Worcester Bosch Greenstar Boiler Quotes

Get quotes to supply and fit a new Worcester Bosch Greenstar 12i System Gas Boiler

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

Write a review

Worcester Bosch Greenstar 12i System Gas Boiler Boiler

You are reviewing:

Worcester Bosch Greenstar 12i System Gas Boiler
Back to Worcester Bosch Greenstar 12i System Gas Boiler
Why not compare these similar boilers?
Boiler Model kW Options Efficiency Standard Warranty Typical Price
Worcester Bosch Greenstar 27CDi Combi Gas Boiler 27kw 90.3 5 years £1700 COMPARE
Worcester Bosch Greenstar 37CDi Combi Gas Boiler 32kw 90.1 5 years £1282 COMPARE
Worcester Bosch Greenstar 30CDi Combi Gas Boiler 30kw 90.1 5 years £1127 COMPARE
Worcester Bosch Greenstar 42CDi Combi Gas Boiler 42kw 90.1 5 years £1769 COMPARE
Worcester Bosch Greenstar Heatslave External 32 Combi Oil Boiler 32kw 90.3 5 years £2564 COMPARE
Worcester Bosch Greenstar Camray 18 Regular Oil Boiler 18kw 93.1 5 years £2263 COMPARE
Worcester Bosch Greenstar Camray 25 Regular Oil Boiler 25kw 93.2 5 years £2284 COMPARE
Worcester Bosch Greenstar Camray 32 Regular Oil Boiler 32kw 94.2 5 years £2072 COMPARE
Worcester Bosch Greenstar Camray Utility 18 Regular Oil Boiler 18kw 93.1 5 years £2072 COMPARE
Worcester Bosch Greenstar Camray Utility 32 Regular Oil Boiler 32kw 94.2 5 years £2030 COMPARE
Worcester Bosch Greenstar Camray External 18 Regular Oil Boiler 18kw 93.1 5 years £2096 COMPARE
Worcester Bosch Greenstar Camray Utility 25 Regular Oil Boiler 25kw 93.2 5 years £2030 COMPARE
Worcester Bosch Greenstar Camray External 32 Regular Oil Boiler 32kw 94.2 5 years £2030 COMPARE
Worcester Bosch Greenstar Camray External 25 Regular Oil Boiler 25kw 93.2 5 years £1608 COMPARE
Worcester Bosch Camray Utility 32 System Oil Boiler 32kw 94.2 5 years £2030 COMPARE
Worcester Bosch Camray Utility 25 System Oil Boiler 25kw 93.2 5 years £1608 COMPARE
Worcester Bosch Greenstar 24i Junior Combi Gas Boiler 24kw 89.10% 2 years £800 COMPARE
Worcester Bosch Greenstar 42CDi Classic Combi Gas Boiler 42kw 92% 2 years £1600 COMPARE
Worcester Bosch Greenstar 34CDi Classic Combi Gas Boiler 34kw 92% 2 years £1169 COMPARE
Worcester Bosch Greenstar 38CDi Classic Combi Gas Boiler 38kw 92% 2 years £1331 COMPARE
Worcester Bosch Greenstar 28CDi Compact Combi Gas Boiler 28kw 92% 2 years £1041 COMPARE
Worcester Bosch Greenstar 29CDi Classic Combi Gas Boiler 29kw 89.10% 2 years £1116 COMPARE
Worcester Bosch Greenstar 32CDi Compact Combi Gas Boiler 32kw 92% 2 years £1136 COMPARE
Worcester Bosch Greenstar Highflow 550CDi Combi Gas Boiler 30kw 92% 2 years £2515 COMPARE
Worcester Bosch Greenstar Highflow 440CDi Combi Gas Boiler 29kw 92% 2 years £2081 COMPARE
Worcester Bosch Greenstar 40CDi Classic Regular Gas Boiler 40kw 92% 2 years £1495 COMPARE
Worcester Bosch Greenstar 30Si Compact Combi Gas Boiler 30kw 94% 2 years £1069 COMPARE
Worcester Bosch Greenstar 25Si Compact Combi Gas Boiler 25kw 94% 2 years £1016 COMPARE
Worcester Bosch Greenstar 24Ri Regular Gas Boiler 24kw 91% 2 years £900 COMPARE
Worcester Bosch Greenstar Heatslave II 18 Combi Oil Boiler 18 kw 91% 2 years £2196 COMPARE
Worcester Bosch Greenstar Danesmoor 32 Regular Oil Boiler 32kw 90.70% 2 years £2200 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 18 System Oil Boiler 18 kw 91% 2 years £1550 COMPARE
Worcester Bosch Greenstar 28i Junior Combi Gas Boiler 28kw 89.10% 2 years £900 COMPARE
Worcester Bosch Greenstar Utility 70 Regular Oil Boiler 70kw 88% 2 years £2300 COMPARE
Worcester Bosch Greenstar Utility 50 Regular Oil Boiler 50 kw 89% 2 years £2100 COMPARE
Worcester Bosch Greenstar Danesmoor 25 Regular Oil Boiler 25kw 90% 2 years £1580 COMPARE
Worcester Bosch Greenstar 30CDi Classic Regular Gas Boiler 30kw 92% 2 years £1100 COMPARE
Worcester Bosch Greenstar 18Ri Regular Gas Boiler 18kw 91% 2 years £840 COMPARE
Worcester Bosch Greenstar 15Ri Regular Gas Boiler 15kw 91% 2 years £785 COMPARE
Worcester Bosch Greenstar 12Ri Regular Gas Boiler 12kw 91% 3 years £731 COMPARE
Worcester Bosch Greenstar 30CDi Classic System Gas Boiler 30 kw 92% 2 years £1155 COMPARE
Worcester Bosch Greenstar 24i System Gas Boiler 24kw 94% 2 years £935 COMPARE
Worcester Bosch Greenstar 12i System Gas Boiler 12kw 94% 2 years £850 COMPARE
Worcester Bosch Greenstar 36CDi Compact Combi Gas Boiler 36kw 94% 5 years £1250 COMPARE
Worcester Bosch Greenstar 25i Combi Gas Boiler 25kw 94% 5 years £850 COMPARE
Worcester Bosch Greenstar 30i Combi Gas Boiler 30kw 94% 5 years £1100 COMPARE
Worcester Bosch Greenstar Heatslave II 25 Combi Oil Boiler 25kw 90% 2 years £2252 COMPARE
Worcester Bosch Greenstar Heatslave II 32 Combi Oil Boiler 32kw 91% 2 years £2350 COMPARE
Worcester Bosch Greenstar Heatslave II External 25 Combi Oil Boiler 25kw 90% 2 years £2200 COMPARE
Worcester Bosch Greenstar Heatslave II External 32 Combi Oil Boiler 32kw 91% 2 years £2240 COMPARE
Worcester Bosch Greenstar Heatslave II External 18kW Combi Oil Boiler 18kw 91% 2 years £2425 COMPARE
Worcester Bosch Greenstar 27Ri Regular Gas Boiler 27kw 92% 5 years £1020 COMPARE
Worcester Bosch Greenstar 30Ri Regular Gas Boiler 30kw 92% 5 years £1040 COMPARE
Worcester Bosch Greenstar FS 30CDi Regular gas boiler 30kw 92% 5 years £1433 COMPARE
Worcester Bosch Greenstar Fs 42CDi Regular Gas Boiler 42kw 92% 5 years £1640 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 25 Regular Oil Boiler 25kw 90% 2 years £1550 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 32 Regular Oil Boiler 32kw 91% 2 years £1975 COMPARE
Worcester Bosch Greenstar Danesmoor External 18 Regular Oil Boiler 18kw 91% 2 years £1750 COMPARE
Worcester Bosch Greenstar Danesmoor External 25kW Regular Oil Boiler 25kw 90% 2 years £2300 COMPARE
Worcester Bosch Greenstar Danesmoor External 32 Regular Oil Boiler 32kw 91% 2 years £2300 COMPARE
Worcester Bosch Greenstar 9i System Gas Boiler 9kw 93% 5 years £808 COMPARE
Worcester Bosch Greenstar 15i System Gas Boiler 15kw 94% 5 years £870 COMPARE
Worcester Bosch Greenstar 18i System Gas Boiler 18kw 94% 5 years £924 COMPARE
Worcester Bosch Greenstar 21i System Gas Boiler 21kw 94% 5 years £982 COMPARE
Worcester Bosch Greenstar 27i System Gas Boiler 27kw 92% 5 years £981 COMPARE
Worcester Bosch Greenstar 30i System Gas Boiler 30kw 92% 5 years £1112 COMPARE
Worcester Bosch Greenstar 35CDi Classic System Gas Boiler 35kw 92% 2 years £1187 COMPARE
Worcester Bosch GB162 50kW System Gas Boiler 50kw 92% 2 years £1918 COMPARE
Worcester Bosch GB162 65kW System Gas Boiler 65kw 93% 2 years £2364 COMPARE
Worcester Bosch Greenstar Danesmoor 18 System Oil Boiler 18kw 91% 2 years £1340 COMPARE
Worcester Bosch Greenstar Danesmoor 25 System Oil Boiler 25kw 90% 2 years £2000 COMPARE
Worcester Bosch Greenstar Danesmoor 32 System Oil Boiler 32kw 91% 2 years £2000 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 25 System Oil Boiler 25kw 90% 2 years £1600 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 32 System Oil Boiler 32kw 91% 2 years £2100 COMPARE
Worcester Bosch Greenstar Danesmoor External 18 System Oil Boiler 18kw 91% 2 years £2100 COMPARE
Worcester Bosch Greenstar Danesmoor External 25 System Oil Boiler 25kw 90% 2 years £2325 COMPARE
Worcester Bosch Greenstar Danesmoor External 32 System Oil Boiler 32kw 91% 2 years £2400 COMPARE
Worcester Bosch Greenstar Danesmoor 18 Regular Oil Boiler 18kw 91% 5 years £1380 COMPARE
Worcester Bosch Greenstar Danesmoor Utility 18 Regular Oil Boiler 18kw 91% 5 years £1375 COMPARE

Need a new boiler?

Get FREE no-obligation quotes now!

Trust Pilot

What kind of fuel does your boiler use?

Trust Pilot

Our customers think we're great!

Filter boilers

Fuel type

Boiler type

Manufacturer

FILTER
COMPARE