Greenstar Heatslave II Professional

Greenstar Heatslave II overview

The installer's choice

There’s a good reason why this is the UK’s best-selling oil boiler of all time, a favourite of homeowners and installers alike. Easy to fit under any kitchen worktop^, easy to maintain and easy to sell, with flexible power outputs for any shape or size home.

Standard Guarantee

2 Year

With any Greenstar System Filter

5 Year

With any Greenstar System Filter + £40 (Non-WAI loyalty members only)†

7 year

†Available to loyalty members only. Non-WAI’s can achieve this extended guarantee length with an additional payment of £40.

Features & Benefits

Rapid comfort - Hot water without waiting	Quiet - Enjoy the peace, quiet in operation	Space saving - Fits neatly under kitchen worktop^ - ^Worktop must be removable
Flexible - Suits many homes, with sizes from 12kW-32kW	Quality - Bosch quality as standard

Technical details

HVO Conversion Kit 12/18 13kW

Part number: 7 731 600 277
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

HVO Conversion Kit 12/18 15kW

Part number: 7 731 600 276
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

HVO Conversion Kit 12/18 18kW

Part number: 7 731 600 278
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

Greenstar Heatslave II 12/18 2022+

Part number: 7 731 600 260
ErP Efficiency Rating: B

A
ErP Data Sheet: ErP Data Sheet
Fuel Type: Oil
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): 18
Dimensions (mm) height x width x depth: 855 x 520 x 600
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): 1.5
Lift weight (kg): 124

HVO Conversion Kit 18/25 25kW

Part number: 7 731 600 293
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

HVO Conversion Kit 25/32 25kW

Part number: 7 731 600 294
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

HVO Conversion Kit 25/32 32kW

Part number: 7 731 600 296
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

HVO Conversion Kit 25/32 28.5kW

Part number: 7 731 600 295
ErP Efficiency Rating: N/A
ErP Data Sheet
Fuel Type
Control Options
EasyControl Compatible ¹
Solar Compatible
Central heating output (kW): N/A
Dimensions (mm) height x width x depth: N/A
Clearances (mm) above, sides, below and front: 300 x 5 x 600
Maximum horizontal flue (mm): High Level Horizontal 5m, Rear Exit Horizontal 6m, Side Exit Horizontal 5m
Maximum vertical flue (mm): N/A
Ingress protection rating: IP20
Minimum inlet pressure (bar): N/A
Lift weight (kg): N/A

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 Restrictor For 80mm Pipe	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
Oil plume management kit	7 716 190 092
Oilfit Plume Management 2x 45 degree elbows	7 716 190 094
Oilfit Plume Management 90 degree elbow	7 716 190 095
Oilfit Plume Management 1m extension	7 716 190 093

Want to learn more?

Introducing the Greenstar Comfort Controls
Introducing the new EasyControl
ErP Easy as ABC

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