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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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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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ERP Rating
A
ERP Efficiency
94%
Boiler Type
Combi
Depth
825 mm
Height
364.6 mm
Width
440 mm
External or Internal
Internal
Heat Output
34 kW
Fuel Type
NG
Noise Level
53dB
Solar Compatible
N
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
N
Brand Name
Worcester Bosch
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ERP Rating
A
ERP Efficiency
94%
Boiler Type
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Depth
825 mm
Height
364.6 mm
Width
440 mm
External or Internal
Internal
Heat Output
34 kW
Fuel Type
NG
Noise Level
53dB
Solar Compatible
N
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
N
Brand Name
Worcester Bosch
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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.
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Worcester Greenstar 36CDI Compact Combi Gas Boiler ERP 7733600056
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