Worcester Greenstar I System 24kW ERP Boiler & Flue Packs

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The Worcester 24i System Boiler is the perfect choice for small properties such as flats and bungalows. Offering compact dimensions, a low lift weight and A-Rated efficiency, the 24i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 24i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 24i boiler can cut heating and hot water bills by 15-20% annually (When replacing an older, G-Rated boiler) and is up to 30% cheaper to run. These savings mean that over the years the boiler will essentially pay for itself, as the quality of Worcester boilers means that you won't need to replace it for many years. Easy to use, the Worcester 24i includes simple boiler controls to ensure your boiler is set at the correct temperature for the customer's need, while also providing operational information and diagnostics to help with maintenance.
  • 5 Year warranty on Greenstar gas boilers as standard
  • Integrated expansion vessel and pump
  • SEDBUK A-Rated efficiency
  • Compact and lightweight
  • Wall mounting jig
  • Single sided front case
  • Pre-wired mains cable
  • Simple boiler controls
  • On-board operational information and diagnostics
  • CondenseSure style syphon inside

Technical specification

ERP Efficiency
ERP Rating
Boiler Type
330 mm
710 mm
400 mm
Maximum Horizontal Flue 100mm
6.4 m
Maximum Horizontal Flue 125mm
13 m
Maximum Vertical Flue 100mm
6.4 m
Maximum Vertical Flue 125mm
15 m
SEDBUK SAP 2009 Rating
CH Condensing Max Output
24.6 kW
Heat Output
24 kW
Noise Level
50 dBA
Nox Class
Solar Compatible
Years Guaranteed
Made To Order
Manufacturer Model No
Brand Name
Worcester Bosch
Range Description
Greenstar i System


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