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Worcester Greenstar 21I System Gas Boiler ERP 7733600007

774420
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Overview

The Worcester 21i 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 21i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 21i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 21i 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 21i 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
0.93
ERP Rating
A
Boiler Type
System
Depth
330 mm
Height
700 mm
Width
400 mm
DHW Output Min and Max
< 24
SEDBUK SAP 2009 Rating
A
CH Condensing Max Output
21 kw
Heat Output
21 kW
Includes
Boiler Only
Years Guaranteed
5
Made To Order
N
Manufacturer Model No
7733600007
Brand Name
Worcester Bosch

Reviews

£1077.60
each (Inc. VAT)
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Manufacturer Model No
7736902028
Brand Name
WORCESTER
BTU/h
68289
ERP Efficiency
A
ERP Rating
A
Boiler Type
Combi
Depth
880 mm
Height
480 mm
Width
380 mm
Maximum Horizontal Flue 100mm
9m
Maximum Horizontal Flue 125mm
12m
Maximum Vertical Flue 100mm
12m
Maximum Vertical Flue 125mm
15m
External or Internal
Internal
DHW Output
30
DHW Flow Rate at 35 Degree Rise
12
DHW Output Min and Max
4.9 - 30
SEDBUK SAP 2009 Rating
89.10%
CH Condensing Max Output
20kW
Heat Output
20 kW
Fuel Type
NG
Noise Level
43dB(A)
Nox Class
6
Solar Compatible
No
Type
BOILER
Years Guaranteed
5
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£886.80
each (Inc. VAT)
The Greenstar i model is available in combi outputs of 25kW and 30kW, and is set to improve water performance in small to medium sized properties with one bathroom. The Greenstar i includes a pre-assembled wall frame with mounting hooks and with the same compact dimensions as the Greenstar i Junior, replacements will be simple. All components within the boiler are serviceable from the front, and there is no requirement to dismount the boiler from the wall to service its expansion vessel, or to break the combustion chamber seal to access the fan. A Benchmark menu within the boiler control software also simplifies completion of the Benchmark logbook. The new boiler contains a larger condensate syphon to tackle the issue of frozen condensate, while the boiler? Heatronic control panel showcases an all-improved interface, with text descriptions or error codes enabling homeowners to communicate their needs more effectively.
Range Description
Greenstar i
Brand Name
Worcester Bosch
Manufacturer Model No
7733600012
Made To Order
N
Dimension 3
700.0
Dimension 2
400.0
Dimension 1
330.0
Boiler Type
Combi
ERP Efficiency
0.93
ERP Rating
A
Depth
330 mm
Height
880 mm
Width
400 mm
Maximum Horizontal Flue 100mm
4.6 m
Maximum Horizontal Flue 125mm
13 m
Maximum Vertical Flue 100mm
6.4 m
Maximum Vertical Flue 125mm
15 m
External or Internal
Internal
DHW Output
25 kW
DHW Flow Rate at 35 Degree Rise
10.2 ltrs / min
DHW Output Min and Max
7.14 – 25 kW
SEDBUK SAP 2009 Rating
A/89.6%
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
24 kW
Heat Output
24 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
50 dBA
Nox Class
5
Solar Compatible
No
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Yes
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£970.80
each (Inc. VAT)
The all new Worcester Greenstar gas-fired Si Compact is the successor to the Greenstar Si combi boiler. Ideal for apartments and small to medium sized properties with one bathroom, it has a host of performance-enhancing features, including the revolutionary WB7 heat exchanger which enables the appliances to deliver DHW flow rates of 10.2 and 12.3 l/min despite their compact size. The new Greenstar Si Compact has been designed to make installation and commissioning easier and quicker, and comes supplied with a unique wall-mounting jig which enables the installer to quickly pre-plumb all seven pipe connections without the boiler being on the wall. A built in LCD display provides quick and easy operation status and fault diagnosis, providing greater clarity during maintenance and operation.
Dimension 3
680.0
Dimension 2
390.0
Dimension 1
280.0
Brand Name
Worcester Bosch
Manufacturer Model No
7733600052
Boiler Type
Combi
ERP Rating
A
ERP Efficiency
0.93
Depth
280 mm
Height
978 mm
Width
395 mm
Maximum Horizontal Flue 100mm
6 m
Maximum Horizontal Flue 125mm
15 m
Maximum Vertical Flue 100mm
6 m
Maximum Vertical Flue 125mm
15 m
External or Internal
Internal
DHW Output
30 kW
DHW Flow Rate at 35 Degree Rise
12.3 ltrs / min
DHW Output Min and Max
12 < 13
SEDBUK SAP 2009 Rating
0.898
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
24 kW
Heat Output
24 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
52 dB
Nox Class
5
Solar Compatible
No
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Yes
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£1212.00
each (Inc. VAT)
The Worcester Bosch Greenstar 36CDi ErP Compact Combi Boiler is a small and efficient combi boiler available from Worcester, able to meet high demands without requiring excess space. Suitable for small, medium and large sized properties, this natural gas boiler can deliver outputs of up to 36 kW and flow rates of up to 14.6 l/min and is best suited to properties that demand high outputs from an appliance that can fit within a standard kitchen cupboard. To make installation straightforward, it has a split-jig design and it? environmentally conscious too, with an ?? ErP rating. To suit every heating requirement, this boiler further benefits from highly adjustable controls that make it easy to use and programme, with a clear LCD display and a range of modes. The robust metal mounting jig and built in frost protection provides a strong, long lasting boiler system with simple maintenance and issue diagnostic.
Dimension 2
390.0
Dimension 3
680.0
Dimension 1
280.0
Brand Name
Worcester Bosch
Range Description
CDI
Manufacturer Model No
7733600056
ERP Efficiency
0.93
ERP Rating
A
Boiler Type
Combi
Depth
280 mm
Height
978 mm
Width
395 mm
Maximum Horizontal Flue 100mm
6 m
Maximum Horizontal Flue 125mm
15 m
Maximum Vertical Flue 100mm
6 m
Maximum Vertical Flue 125mm
15 m
External or Internal
Internal
DHW Output
36 kW
DHW Flow Rate at 35 Degree Rise
14.7 ltrs / min
DHW Output Min and Max
7.03 – 36 kW
SEDBUK SAP 2009 Rating
0.898
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
36 kW
Heat Output
24 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
52 dBA
Nox Class
5
Solar Compatible
Yes
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Yes
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each (Inc. VAT)
Worcester 2000 30kW Ng Combi Boiler Includes Free Comfort+ II controller
Worcester 2000 30kW Ng Combi Boiler Includes Free Comfort+ II controller
The 2000 Series Is Worcester Bosch’s Most Price Competitive Combi Boiler. The Worcester 2000 Combi Boiler Features A Stylish Modern Design And Is Suitable For Apartments And Small And Medium Sized Homes With One Bathroom. The 2000 Can Modulate Down To As Little As 4.8kw And Includes The C6 Heat Exchanger Which Is An Evolution Of The Efficient And Reliable Wb3 Heat Exchanger Of The Greenstar I. With Hot Water Flow Rates Up To 12.3 L/min, The 2000 Range Also Comes With A 5 Year Guarantee As Standard, And A 6 Year Guarantee When Installed With The Greenstar System Filter. Designed To Be Accessible For All, The Worcester 2000 Combi Boiler Offers Every Home Greater Choice And The Opportunity To Have A Market Leading, Reliable Worcester Bosch Boiler. The Boiler Comes With The Worcester Bosch Comfort+ Ii Control And Horizontal Flue.
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Show More
£1306.80 each (Inc. VAT)
Quick view