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Greenstar Heatslave II overview
Our Greenstar Heatslave II is the UK's most popular oil combi boiler with flow rates up to 22l/min.
Suitable for small, medium and large sized properties, this boiler features easy access connections and a one piece stainless steel primary baffle and cross firing burner.
The next generation Heatronic 4i digital control unit provides accurate control and diagnostic information.
Download our easy guide, which covers everything you need to know about the Heatslave II
Standard Guarantee
- 2 Year
With any Greenstar System Filter
- 5 Year
With any Greenstar System Filter + £150 (Non-WAI Excelerate members only)*
- 7 year
*Available to Excelerate members only. Non-WAI’s can achieve this extended guarantee length with an additional payment of £150.
Features & Benefits
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Cross firing burner
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One piece baffle for quick and easy servicing
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Easy access oil and hydraulic connections
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Digital control offering precision heating and hot water control
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Lightweight aiding installation
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Front access for routine servicing, including a pivoting expansion vessel for ease of access
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Compatible with our Greenstar Comfort controls
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Compatible with solar thermal
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5 year guarantee on Worcester primary heat exchanger
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80/125mm room sealed flues with lengths of up to 8m available
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Plume management of up to 5m with conventional and flexi-flue kits also available
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Technical Details
| Greenstar Heatslave II 12/18 | Greenstar Heatslave II 18/25 | Greenstar Heatslave II 25/32 | |
|---|---|---|---|
| Part number | 7 731 600 165 | 7 731 600 166 | 7 731 600 167 |
| ErP Efficiency Rating |
B
A
|
B
A
|
B
A
|
| ErP Data Sheet | ErP Data Sheet | ErP Data Sheet | ErP Data Sheet |
| Control Options | |||
| EasyControl Compatible 1 | |||
| Solar Compatible | |||
| Central heating output (kW) | 18 | 25 | 32 |
| Dimensions (mm) height x width x depth | 855 x 520 x 600 | 855 x 520 x 600 | 855 x 520 x 600 |
| Clearances (mm) above, sides, below and front | 300 x 5 x 600 | 300 x 5 x 600 | 300 x 5 x 600 |
| Show more | |||
Manuals & Brochures
| Product Literature |
|---|
| Greenstar Heatslave II Combi Internal ErP+ Installation and Servicing Instructions |
| Greenstar 12-32 Heatslave II Combi Internal ErP+ Operating Instructions |
Related Accessories
| Boiler Accessories | Part number | ||||
|---|---|---|---|---|---|
| CondenseSure | 7 716 192 746 | ||||
| Greenstar Comfort wall mounting plate | 7 733 600 039 | ||||
| EasyControl Adapter | 7 736 701 560 | Installation Manual |
| Flashing Kits | Part number | ||||
|---|---|---|---|---|---|
| Flat roof flashing kit (100mm & 125mm dia.) | 7 716 191 090 | ||||
| Pitched roof flashing kit (100mm & 125mm dia) | 7 716 191 091 |
| Flue | Part number | ||||
|---|---|---|---|---|---|
| 1000mm extension kit, 100mm dia | 7 716 190 066 | ||||
| 45º bend, 100mm dia | 7 716 190 069 | ||||
| 45º bend, 80/125mm | 7 716 190 035 | ||||
| 500mm extension kit, 100mm dia | 7 716 190 067 | ||||
| 90º flue bend | 7 716 190 034 | ||||
| Flue extension, 80/125mm | 7 716 190 033 | ||||
| Greenstar Oilfit 100mm flexible flue kit, 12m | 7 716 190 077 | ||||
| Greenstar Oilfit 100mm flexible flue kit, 8m | 7 716 190 076 | ||||
| Flue Damper | 7 716 190 101 | ||||
| Stainless steel flue terminal guard | 7 716 190 050 | ||||
| Telescopic extension 100mm dia | 7 716 190 068 | ||||
| 80/125 standard telescopic flue kit | 7 716 190 064 | ||||
| 80/125 short telescopic flue kit | 7 716 190 062 | ||||
| Wall cover plate kit 100mm dia. | 7 716 190 074 | ||||
| 600mm extension | 7 716 190 097 | ||||
| Conventional vertical flue kit, 100/103mm | 7 716 190 104 | ||||
| Infill plate kit (for high level horizontal flues) | 7 716 190 105 |
| Plume | Part number | ||||
|---|---|---|---|---|---|
| Plume management kit | 7 716 190 092 | ||||
| Plume management 45º bend | 7 716 190 094 | ||||
| Plume management 90º bend | 7 716 190 095 | ||||
| 1,000mm extension | 7 716 190 093 |
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