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Greenstar Heatslave II 18/25 Erp+

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Overview

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.
  • Best Boiler Efficiency Rating (SEDBUK band A)
  • Instantaneous supply of hot water available
  • Improved heating response time
  • Higher outputs suitable for larger, 2 bathroom properties

Technical specification

ERP Rating
A
Boiler Type
Combi
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
25 kW
Heat Output
25 kW
Fuel Type
Oil
Noise Level
56dB
Solar Compatible
Y
Type
Oil Boiler
Years Guaranteed
2
Registered with the Energy Savings Trust
Y
Made To Order
N
Manufacturer Model No
7731600166
Brand Name
Worcester Bosch

Reviews

NEW
£2480.40
each (Inc. VAT)
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Boiler Type
Combi
Depth
338 mm
Height
720 mm
Width
440 mm
Maximum Horizontal Flue 100mm
5.5 m
Maximum Horizontal Flue 125mm
32 m
Maximum Vertical Flue 100mm
5.5 m
Maximum Vertical Flue 125mm
34 m
External or Internal
Internal
DHW Output
31.8 kW
DHW Response 1m from Tap
5 sec
DHW Flow Rate at 35 Degree Rise
13 ltrs / min
DHW Output Min and Max
31.8 kW
SEDBUK SAP 2009 Rating
91.29%
SEDBUK SAP 2005 Rating
A
CH Condensing Max Output
24.7 kW
Heat Output
32 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
46 dB
Nox Class
5
Solar Compatible
Yes
Type
Boiler
Years Guaranteed
5
Registered with the Energy Savings Trust
Yes
Brand Name
Vaillant
Manufacturer Model No
10021824
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ERP Efficiency
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ERP Rating
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Boiler Type
System
Depth
300 mm
Height
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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
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CH Condensing Max Output
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Heat Output
25 kW
Fuel Type
Natural Gas
Noise Level
50 dBA
Type
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Years Guaranteed
5
Brand Name
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Made To Order
N
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Manufacturer Model No
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Boiler Type
Heat Only
ERP Rating
A
ERP Efficiency
93%
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
Brand Name
Glow-Worm
Made To Order
N
Range Description
Energy Range
Manufacturer Model No
10015663
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ERP Efficiency
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ERP Rating
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Boiler Type
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Depth
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Height
740 mm
Width
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Maximum Horizontal Flue 100mm
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Maximum Horizontal Flue 125mm
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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
Brand Name
Glow-Worm
Made To Order
N
Range Description
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Manufacturer Model No
10021408
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