Delivery address
Collection branch

Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309

263637
Watch video
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Hover Over to Zoom In
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309
Worcester Greenstar Ri 18kW Heat Only Gas Boiler ErP 7733600309

Overview

  • 10 year guarantee on primary heat exchanger (subject to terms and conditions)
  • Compact dimensions - can fit within kitchen cupboard
  • Built-in heating temperature control
  • Compatible with Greenskies solar panels
  • Low NOx and CO2 emissions - environmentally friendly
  • Multi-directional fluing for siting flexibility
  • A rated efficiency (SAP 2005 seasonal efficiency)

Technical specification

Boiler Type
Heat Only
ERP Rating
A
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
18 kW
Heat Output
18 kW
Fuel Type
Natural Gas
Includes
Boiler
Noise Level
50dB(A)
Solar Compatible
Y
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Y
Made To Order
N
Manufacturer Model No
7733600309
Brand Name
Worcester Bosch

Reviews

Be the first to review this product.
Retail price

£1,256.89

each
£1,047.41 ex. vat
Trade price available
Save with a Trade account
Enter postcode for local availability
Select collection branch for local availability
Please enter your delivery postcode...
Please select your collection branch...

Related products

The new Greenstar 2000, available in outputs of 25kW and 30kW, is a price competitive combi boiler, suitable for apartments, small and medium sized homes with one bathroom. Worcester’s quietest combi boiler, with hot water flow rates up to 12 l/min, comes with a 5 year guarantee as standard and a 6 year guarantee when installed with the Greenstar System Filter.
ERP Efficiency
93%
BTU/h
68240
Boiler Type
Combi
ERP Rating
A
Depth
400 mm
Height
724 mm
Width
300 mm
Maximum Horizontal Flue 100mm
9
Maximum Horizontal Flue 125mm
12m
Maximum Vertical Flue 100mm
12
Maximum Vertical Flue 125mm
15
External or Internal
Internal
DHW Output
30
DHW Response 1m from Tap
10.8
DHW Flow Rate at 35 Degree Rise
12
DHW Output Min and Max
4.8 - 30
SEDBUK SAP 2009 Rating
89.1
CH Condensing Max Output
20
Heat Output
30 kW
Fuel Type
Natural Gas
Noise Level
43
Nox Class
6
Solar Compatible
No
Type
Natural Gas Combi Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
No
Manufacturer Model No
7736902100
Brand Name
Worcester Bosch

£1,053.35

each (Inc. VAT)
Loading...
Loading...
The Energy Regular is a gas boiler from Glow-worm, which has been designed with a variety of features and benefits in mind to create a highly reliable and long lasting boiler. The Regular will heat the central heating system directly, as well as provide hot water for a seperate cylinder, meaning a hot water storage cylinder will be needed, which is fed by a cold water storage cistern located in the loft. This may not be the choice for small homes but it is ideal for a like for like replacement of a regular boiler. This unit is a highly efficient A rated boiler with a rating of 89.3%. This boiler has an output of 25kW making it perfect for homes that do not have a high demand for hot water. This boiler is compact in size helping to save space in the home. The bright, modern LCD display provides clear and obvious status updates for both customer and installer. The Energy comes with the choice of a top or rear mounted flue giving it ultimate flexibility when you're choosing an installation site. Utilising an industry standard DIN layout makes boiler swaps quick and painless. The large waterways on the aluminium heat exchanger also makes it the perfect retrofit solution.
ERP Efficiency
93%
ERP Rating
A
Boiler Type
Heat Only
Depth
280 mm
Height
700 mm
Width
375 mm
Maximum Horizontal Flue 100mm
10 m
Maximum Horizontal Flue 125mm
25 m
Maximum Vertical Flue 100mm
10 m
Maximum Vertical Flue 125mm
25 m
DHW Flow Rate at 35 Degree Rise
10.4
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
90.90%
CH Condensing Max Output
26.5 kW
Heat Output
25 kW
Includes
Boiler Only
Noise Level
51 dB
Nox Class
5
Solar Compatible
No
Years Guaranteed
7
Registered with the Energy Savings Trust
Yes
Made To Order
N
Manufacturer Model No
10015663
Brand Name
Glow-Worm
Range Description
Energy Range

£1,190.06

each (Inc. VAT)
Loading...
Loading...
The Ultimate3 regular (open vent) boiler is suitable for homes with high hot water demands. The Ultimate3 regular heat only boiler is available in a 25kW output and has been designed to be light and compact with cupboard fit dimensions. The boiler features flexible flue options and an aluminium heat exchanger for proven reliability and performance. Parts and labour are guaranteed for 5 years.
ERP Rating
A
ERP Efficiency
94%
Boiler Type
Heat Only
Depth
300 mm
Height
740 mm
Width
418 mm
Maximum Horizontal Flue 100mm
10 m
Maximum Horizontal Flue 125mm
10 m
Maximum Vertical Flue 100mm
10 m
Maximum Vertical Flue 125mm
25 m
External or Internal
Internal
SEDBUK SAP 2009 Rating
89%
SEDBUK SAP 2005 Rating
91%
CH Condensing Max Output
26.5 kW
Heat Output
30 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
51 dBA
Solar Compatible
N
Type
Boiler
Years Guaranteed
5
Made To Order
N
Manufacturer Model No
10021408
Brand Name
Glow-Worm
Range Description
Ultimate3

£969.00

each (Inc. VAT)
Loading...
Loading...
The Energy 18S system boiler is a high efficiency and high quality boiler that is designed using automotive grade aluminium, that is designed to last a lot longer than your typical copper or alloy heat exchangers and also dramatically reduce your energy bills. The new beautifully designed heat exchanger is extremely quiet providing a silently operating boiler that you will hardly notice is on. Energy system boiler has modern high impact design which will suit your customer? homes and comes with a bright easy to read LCD display, a smart timeless case design and super quiet running. Energy just requires simple water flush cleaning for the heat exchanger which means lower costs and no special cleaning tools. The patented 4 sided cooling reduces the stress on the heat exchanger which means longer term reliability for your customers.
ERP Efficiency
93%
ERP Rating
A
Boiler Type
System
Depth
280 mm
Height
700 mm
Width
390 mm
Maximum Horizontal Flue 100mm
10 m
Maximum Horizontal Flue 125mm
25 m
Maximum Vertical Flue 100mm
10 m
Maximum Vertical Flue 125mm
25 m
DHW Flow Rate at 35 Degree Rise
10.4
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
91%
CH Condensing Max Output
19.1 kW
Heat Output
18 kW
Includes
Boiler Only
Noise Level
49 dB
Nox Class
5
Solar Compatible
Yes
Years Guaranteed
7
Registered with the Energy Savings Trust
Yes
Made To Order
N
Manufacturer Model No
10015657
Brand Name
Glow-Worm
Range Description
Energy Range

£1,161.53

each (Inc. VAT)
Loading...
Loading...
Worcester Greenstar 2000 30kW Combi Boiler
Worcester Greenstar 2000 30kW Combi Boiler
The new Greenstar 2000, available in outputs of 25kW and 30kW, is a price competitive combi boiler, suitable for apartments, small and medium sized homes with one bathroom. Worcester’s quietest combi boiler, with hot water flow rates up to 12 l/min, comes with a 5 year guarantee as standard and a 6 year guarantee when installed with the Greenstar System Filter.
£1,053.35 each (Inc. VAT)
Glow-worm Energy 25kW Heat Only Gas Boiler ErP
Glow-worm Energy 25kW Heat Only Gas Boiler ErP
The Energy Regular is a gas boiler from Glow-worm, which has been designed with a variety of features and benefits in mind to create a highly reliable and long lasting boiler. The Regular will heat the central heating system directly, as well as provide hot water for a seperate cylinder, meaning a hot water storage cylinder will be needed, which is fed by a cold water storage cistern located in the loft. This may not be the choice for small homes but it is ideal for a like for like replacement of a regular boiler. This unit is a highly efficient A rated boiler with a rating of 89.3%. This boiler has an output of 25kW making it perfect for homes that do not have a high demand for hot water. This boiler is compact in size helping to save space in the home. The bright, modern LCD display provides clear and obvious status updates for both customer and installer. The Energy comes with the choice of a top or rear mounted flue giving it ultimate flexibility when you're choosing an installation site. Utilising an industry standard DIN layout makes boiler swaps quick and painless. The large waterways on the aluminium heat exchanger also makes it the perfect retrofit solution.
£1,190.06 each (Inc. VAT)
Glow-worm Ultimate3 25kW Heat Only Gas Boiler ErP
Glow-worm Ultimate3 25kW Heat Only Gas Boiler ErP
The Ultimate3 regular (open vent) boiler is suitable for homes with high hot water demands. The Ultimate3 regular heat only boiler is available in a 25kW output and has been designed to be light and compact with cupboard fit dimensions. The boiler features flexible flue options and an aluminium heat exchanger for proven reliability and performance. Parts and labour are guaranteed for 5 years.
£969.00 each (Inc. VAT)
Glow-worm Energy 18kW System Gas Boiler ERP
Glow-worm Energy 18kW System Gas Boiler ERP
The Energy 18S system boiler is a high efficiency and high quality boiler that is designed using automotive grade aluminium, that is designed to last a lot longer than your typical copper or alloy heat exchangers and also dramatically reduce your energy bills. The new beautifully designed heat exchanger is extremely quiet providing a silently operating boiler that you will hardly notice is on. Energy system boiler has modern high impact design which will suit your customer? homes and comes with a bright easy to read LCD display, a smart timeless case design and super quiet running. Energy just requires simple water flush cleaning for the heat exchanger which means lower costs and no special cleaning tools. The patented 4 sided cooling reduces the stress on the heat exchanger which means longer term reliability for your customers.
£1,161.53 each (Inc. VAT)