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Priority - Interior building supplies made easy

Worcester Greenstar Boiler 12 Ri ErP 7733600074

ID HW733074

£778.80 inc VAT £649.00 ex VAT
Pick up

We offer an extensive range of performance- focused boiler systems that have been designed to meet and exceed your domestic needs, including this Worcester Greenstar 12 Ri.

Armed with a host of high performance, energy saving features and benefits, this boiler is perfectly equipped to allow you to optimise the temperature within your home, whilst cutting your hot water and heating bills by up to 20%.

Proving that style and functionality can work hand in hand, this high quality boiler is sure to be welcomed addition to your home, particularly in small to medium-sized properties.

Designed to work alongside Worcester’s extensive range of high efficiency Greenstore cylinders, this effective, unimposing boiler system is also wall mountable – making it perfect for installing in a standard kitchen cupboard. 

With controlled outputs up to 12kW and a compact, easy to install design, this boiler comes complete with built-in frost protection, ensuring that it is able to perform to maximum capability 365 days a year.

After all, when it comes to heating your home, the efficiency, durability and functionality of your home heating and hot water solution should always be a priority. But that’s not all - this powerful, groundbreaking system also looks great too, ensuring that it doesn’t impose on the look and feel of your existing décor. 

By fitting this boiler with the Greenstar System Filter, the standard 5 year warranty will increase to 6 years*

*Registration with Worcester Bosch is required to benefit from the additional warranty.


Delivery Information

   Order Value

  (inc VAT)  

 Next Day 

  Next Day  


 12 Noon  

  Next Day  




 Collect from store

  £75 and over   Free £10.99 £12.99 £12.99 Free
Under £75 £5.99 £10.99 £12.99 £12.99 Free


Next Day Delivery Exclusions

Any products over 50kg require palletised delivery and are therefore excluded from Next Day Delivery. Please call 0800 197 7170* for delivery times and charges.

*Lines are open between 08:00 – 17:00 (Monday - Friday) and 09:00 – 12:00 (Saturday)


Features And Benefits
  • ErP 'A' rated for heating efficiency
  • Standard kitchen cupboard fit
  • Suitable for heating systems which require a hot water storage cylinder
  • Simple boiler control knobs
  • Built-in Frost protection
  • Standard 5 year guarantee
Product Name Worcester Greenstar Boiler 12 Ri ErP 7733600074
Brand Worcester Bosch
Range Greenstar
Model Number 12Ri
Product Weight 22.6 kg
Product Height 270.0 mm
Product Width 390.0 mm
Product Length 600.0 mm
Product Type Regular Boiler
Manufacturer Name Bosch Thermotechnology Ltd
Manufacturer Part Number 7733600074
Warranty Period 5 Years
Output Power 12.0 kW
Fuel Type Gas
Mounting Location Wall
Flue Diameter
  • 100.0 mm
NOX Level 5.0
GC Number 41-406-41
Endorsed By Energy Saving Trust
Central Heating Energy Rating A
Central Heating Energy Rating % 91.0