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Overview
- Installation aids on-board, including pre-formed pipe tails and an easy-to-install push-fit PRV solution.
- A range of cost-saving features including, Quick Tap water saving functionality a wide performance range to deliver maximum hot water performance and exactly the required level of heating.
- Comprehensive range of control options available, including all 230v controls on the market
- Easy to live with. Incredibly quiet when in use, it's our quietest Worcester Bosch combi boiler. The award-winning Bosch design language adorns the Greenstar 2000 should the boiler be fitted in a visible living space
Technical specification
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
25
DHW Response 1m from Tap
9
DHW Flow Rate at 35 Degree Rise
12
DHW Output Min and Max
4.8 - 25
SEDBUK SAP 2009 Rating
89.1
CH Condensing Max Output
20
Heat Output
25 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
7736902099
Brand Name
Worcester Bosch
Data sheets
Reviews
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Built on all the tried, tested and much-loved features of the Greenstar i, the Greenstar 4000 is instantly familiar and yet totally transformed in appearance, performance and installer plus points. We’ve raised the bar with the speed and ease of installation, commissioning and servicing, alongside improvements in efficiency and control.
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Grant Vortex Pro 21kw Combi External Oil Boiler Includes Flue
The Grant Vortex Pro outdoor combination oil boiler features internal frost protection, a 24 litre expansion vessel, neon diagnostic indicators and a factory-fitted condensate trap, together with the conveniently factory-fitted, multi-directional flue - and all of this has been designed to make installation and servicing easier. With larger than normal 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.
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