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Worcester Bosch Greenstar 4000 25kW Gas Combi Boiler, Flue & Comfort Pack
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Overview
- Includes the Greenstar 4000 25kW combi boiler, standard telescopic flue, and Greenstar Comfort intelligent controller.
- Modernized casing with sleek rounded corners and Quiet Mark accreditation for low-noise performance in living spaces.
- Easy-to-use color display screen for straightforward temperature adjustment and system diagnostics.
- ErP 'A' rated for heat and hot water. Compatible with up to a 20% hydrogen blend for future-proof heating.
- Simple wall-mounting frame and front-access servicing make installation and maintenance straightforward for heating
Technical specification
BTU/h
Internal
ERP Efficiency
A
ERP Rating
81891
Water Heat Output
94
Boiler Type
Condensing Combi
Depth
310
Height
724
Width
400
Maximum Horizontal Flue 100mm
12
Maximum Horizontal Flue 125mm
21
Maximum Vertical Flue 100mm
12
Maximum Vertical Flue 125mm
21
External or Internal
Natural Gas
DHW Output
24.5
DHW Response 1m from Tap
24.5
DHW Flow Rate at 35 Degree Rise
10.2
DHW Output Min and Max
3.2 - 24.5
SEDBUK SAP 2009 Rating
89.4
SEDBUK SAP 2005 Rating
90.1
CH Condensing Max Output
24.7
Heat Output
24.5
Fuel Type
Boiler, wall mounting jig, fittings pack & installation manual
Includes
Combi
Noise Level
45
Nox Class
6
Solar Compatible
Yes
Type
24
Years Guaranteed
7
Registered with the Energy Savings Trust
Yes
Country Origin
UK
Brand Name
Worcester Bosch
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