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Worcester Greenstar 25Si Combi Gas Boiler ERP 7733600050

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Overview

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.
  • Compact and lightweight
  • Fits in a standard kitchen cupboard
  • User-friendly displays for ease of use
  • Hot water can be adjusted to fine tune comfort
  • Wide choice of controls enables greater comfort and economy
  • Frost protection is included, reducing frost risk if installed in a garage or a loft
  • Simple boiler control knobs with clear temperature display
  • Low energy pump reduces electrical usage
  • Instantaneous hot water, always available
  • Achieves an A+ ErP package efficiency rating for heating when installed with a Wave smart internet connected control

Technical specification

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
25 kW
DHW Flow Rate at 35 Degree Rise
10.2 ltrs / min
DHW Output Min and Max
< 12
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
Dimension 1
280
Dimension 2
390
Dimension 3
680
Manufacturer Model No
7733600050
Brand Name
Worcester Bosch

Reviews

£1089.60
each (Inc. VAT)
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Related products
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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each (Inc. VAT)
The Greenstar Highflow CDi combi boilers are floor-standing. These boilers have been specifically developed for larger two bathroom properties where there is a heavier requirement for heating and hot water. Greenstar Highflow CDi boilers incorporate many of the operating features of Worcester's wall-mounted combis and can be used with mechanical, digital, wireless and new-generation intelligent controls. Like all Greenstar boilers from Worcester, the Highflow series are SEDBUK A-Rated for being over 90% fuel efficient. Not only will this reduce heating bills, but also be a lot kinder to the environment. The Highflow CDi provides a large amount of control over heating systems, including an optimising 7 day programmable room thermostat, separate hot water and central heating temperatures, impressive fault finding diagnostics and a full 24 hour programmable room thermostat.
Dimension 3
850.0
Dimension 2
600.0
Dimension 1
600.0
Brand Name
Worcester Bosch
Manufacturer Model No
7731600100
Country Origin
United Kingdom
Range Description
Greenstar Hf
ERP Efficiency
0.92
Boiler Type
Combi
ERP Rating
A
Depth
600 mm
Height
851 mm
Width
600 mm
Maximum Horizontal Flue 100mm
4 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
41.1
DHW Flow Rate at 35 Degree Rise
25
DHW Output Min and Max
41.1 max
SEDBUK SAP 2009 Rating
A/89.2%
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
9.7 - 30.6 kW
Heat Output
30.60 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Nox Class
5
Solar Compatible
Yes
Type
Floor Standing Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Yes
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each (Inc. VAT)
The Greenstar Ri boiler range is available in 4 models with outputs up to 24kW, making the range suitable for an even wider range of households with stored hot water systems. The boilers are compact enough to be installed in a standard kitchen cabinet and are a one-man lift, weighing just 22.6kg, the lightest in their class. Greenstar Ri boilers can be used with compatible Worcester unvented cylinders for the optimum system solution.
ERP Rating
A
Boiler Type
Heat Only
Depth
491 mm
Height
728 mm
Width
421 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
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
12 kW
Heat Output
12 kW
Fuel Type
Natural Gas
Includes
Boiler
Noise Level
45dB(A)
Solar Compatible
Y
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Y
Brand Name
Worcester Bosch
Made To Order
N
Manufacturer Model No
7733600307
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each (Inc. VAT)
The Worcester 12i 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 12i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 12i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 12i 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 12i 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.
ERP Efficiency
0.93
Boiler Type
System
ERP Rating
A
Depth
330 mm
Height
700 mm
Width
400 mm
DHW Output Min and Max
< 24
SEDBUK SAP 2009 Rating
A
CH Condensing Max Output
12 kW
Heat Output
12 kW
Includes
Boiler Only
Years Guaranteed
5
Brand Name
Worcester Bosch
Made To Order
N
Manufacturer Model No
7733600010
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£946.80
each (Inc. VAT)
Worcester Greenstar 25i Combi Gas Boiler Erp 7733600012
Worcester Greenstar 25i Combi Gas Boiler Erp 7733600012
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.
Show More
£970.80 each (Inc. VAT)
Quick view
Worcester Greenstar Highflow 550CDI 31kW Gas Boiler ERP 7731600100
Worcester Greenstar Highflow 550CDI 31kW Gas Boiler ERP 7731600100
The Greenstar Highflow CDi combi boilers are floor-standing. These boilers have been specifically developed for larger two bathroom properties where there is a heavier requirement for heating and hot water. Greenstar Highflow CDi boilers incorporate many of the operating features of Worcester's wall-mounted combis and can be used with mechanical, digital, wireless and new-generation intelligent controls. Like all Greenstar boilers from Worcester, the Highflow series are SEDBUK A-Rated for being over 90% fuel efficient. Not only will this reduce heating bills, but also be a lot kinder to the environment. The Highflow CDi provides a large amount of control over heating systems, including an optimising 7 day programmable room thermostat, separate hot water and central heating temperatures, impressive fault finding diagnostics and a full 24 hour programmable room thermostat.
Show More
£2578.80 each (Inc. VAT)
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Worcester Greenstar Ri 12kW Heat Only Gas Boiler ERP 7733600307
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