Delivery address
Collection branch

Worcester Greenstar 4000 21kW System 7733600383

748721
Worcester Greenstar 4000 21kW System 7733600383
Worcester Greenstar 4000 21kW System 7733600383
Hover Over to Zoom In
Worcester Greenstar 4000 21kW System 7733600383
Worcester Greenstar 4000 21kW System 7733600383
Worcester Greenstar 4000 21kW System 7733600383
Worcester Greenstar 4000 21kW System 7733600383
Worcester Greenstar 4000 21kW System 7733600383

Overview

  • Ease of installation SimpleSwitch to previous Worcester i System models with pre-piping jig offering rear piping as standard
  • Flexibility of siting provided by long flue lengths (up to 12m with 60/100mm flues) and a 500ml integrated condensate siphon to reduce the risk of freezing
  • Complete peace of mind for the end user with a 10-year heat exchanger and a 7-year product guarantee available as standard. Wide modulation range designed to optimise efficiency when heating demand is low.
  • High-end design, quiet operation (up to 42dB(A)) with an intuitive, long text, colour boiler display for ease of use

Technical specification

Boiler Type
Combi
Maximum Vertical Flue 125mm
21m
Manufacturer Model No
7733600383
Brand Name
Worcester Bosch

Reviews

Be the first to review this product.
Retail price

£1,609.27

each
£1,341.06 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 high performance floor-standing Greenstar Heatslave II series is the UK's most popular oil-fired combi boiler. With a range of models available, making it suitable for small, medium and large sized properties, the boiler features a unique slide-out control panel which allows simple boiler adjustment and programming, as well as easy access installer connections and a one piece stainless steel primary baffle for rapid servicing and maintenance.
Boiler Type
Combi
ERP Rating
A
Depth
800 mm
Height
1004 mm
Width
600 mm
Maximum Horizontal Flue 125mm
6 m
Maximum Vertical Flue 125mm
8 m
External or Internal
Internal
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
32 kW
Heat Output
32 kW
Fuel Type
Oil
Noise Level
55dB
Solar Compatible
Y
Type
Oil Boiler
Years Guaranteed
2
Registered with the Energy Savings Trust
Y
Made To Order
N
Manufacturer Model No
7731600167
Brand Name
Worcester Bosch

£4,362.31

each (Inc. VAT)
Loading...
Loading...
The quiet Vortex Eco outdoor wall mountable oil boiler from Grant features the benefits you would expect from the Vortex heat exchanger range, such as providing some of the highest efficiencies on the market. It also includes a factory fitted low level flue, a robust external powder-coated painted case, a mains isolating switch and a test switch.
Boiler Type
Heat Only
Depth
635 mm
Height
837 mm
Width
635 mm
Maximum Horizontal Flue 125mm
3 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.938
CH Condensing Max Output
21 kW
Heat Output
21 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Made To Order
N
Manufacturer Model No
VTXOMWH16/21
Brand Name
Grant
Range Description
Grant Vortex External Wall Hung

£3,095.93

each (Inc. VAT)
Loading...
Loading...
The latest Grant Vortex Pro internal combination oil boiler features a 24 litre expansion vessel, neon diagnostic indicators and a factory-fitted condensate trap - all designed to make installation and servicing easier. With larger than normal plate heat exchangers, the hot water performance of this high-efficiency combi boiler is vastly increased. The two very accurate electronic temperature controls allow the boiler to operate in condensing mode on central heating and instant hot water production can be maintained. In addition, a low system pressure cut off switch protects the combi boiler in the event of system water loss.
Boiler Type
Combi
Depth
614 mm
Height
900 mm
Width
614 mm
Maximum Vertical Flue 100mm
19 mm
DHW Flow Rate at 35 Degree Rise
20 L
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.942
CH Condensing Max Output
36 kW
Heat Output
36 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Made To Order
N
Manufacturer Model No
VTXCOMBI36
Brand Name
Grant
Range Description
Grant Vortex Pro Combi

£4,110.72

each (Inc. VAT)
Loading...
Loading...
5 (1 review)
This quiet Vortex Eco Kitchen/Utility model features the latest, highly efficient stainless steel Vortex heat exchanger and baffle system - providing some of the highest efficiencies on the market. The boiler also has a simplified casing, control panel and pipework arrangement, making it an ideal choice for utility rooms. Internal floor mounting installation.
Boiler Type
Heat Only
Depth
470 mm
Height
900 mm
Width
470 mm
Maximum Vertical Flue 100mm
19 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.921
CH Condensing Max Output
35 kW
Heat Output
35 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Range Description
Grant Vortex Eco Utility
Brand Name
Grant
Manufacturer Model No
VTXECO26/35
Made To Order
N

£2,611.33

each (Inc. VAT)
Loading...
Loading...
Greenstar Heatslave II 25/32 2022+
Greenstar Heatslave II 25/32 2022+
The high performance floor-standing Greenstar Heatslave II series is the UK's most popular oil-fired combi boiler. With a range of models available, making it suitable for small, medium and large sized properties, the boiler features a unique slide-out control panel which allows simple boiler adjustment and programming, as well as easy access installer connections and a one piece stainless steel primary baffle for rapid servicing and maintenance.
£4,362.31 each (Inc. VAT)
Grant Vortex Eco Outdoor 16-21kW Heat Only Wall Hung Oil Boiler
Grant Vortex Eco Outdoor 16-21kW Heat Only Wall Hung Oil Boiler
The quiet Vortex Eco outdoor wall mountable oil boiler from Grant features the benefits you would expect from the Vortex heat exchanger range, such as providing some of the highest efficiencies on the market. It also includes a factory fitted low level flue, a robust external powder-coated painted case, a mains isolating switch and a test switch.
£3,095.93 each (Inc. VAT)
Grant Vortex Pro 36kW Combi Oil Boiler Oil ErP
Grant Vortex Pro 36kW Combi Oil Boiler Oil ErP
The latest Grant Vortex Pro internal combination oil boiler features a 24 litre expansion vessel, neon diagnostic indicators and a factory-fitted condensate trap - all designed to make installation and servicing easier. With larger than normal plate heat exchangers, the hot water performance of this high-efficiency combi boiler is vastly increased. The two very accurate electronic temperature controls allow the boiler to operate in condensing mode on central heating and instant hot water production can be maintained. In addition, a low system pressure cut off switch protects the combi boiler in the event of system water loss.
£4,110.72 each (Inc. VAT)
Grant Vortex Eco Utility/Kitchen 26-35kW Heat Only Oil Boiler
Grant Vortex Eco Utility/Kitchen 26-35kW Heat Only Oil Boiler
This quiet Vortex Eco Kitchen/Utility model features the latest, highly efficient stainless steel Vortex heat exchanger and baffle system - providing some of the highest efficiencies on the market. The boiler also has a simplified casing, control panel and pipework arrangement, making it an ideal choice for utility rooms. Internal floor mounting installation.
£2,611.33 each (Inc. VAT)