Oil Combi Boilers

Oil Combi Boilers

 Combi boilers are the most popular heating and hot water solution in the UK. Over 15 million have been fitted across the country and they are now the preferred choice for most householders and installers. Worcester pioneered the combi boiler in the UK, with the Greenstar range developed to suit virtually all homes.

All Worcester Greenstar oil combi boilers are designed and manufactured to provide high levels of performance and operating efficiency. This is achieved through features such as the ‘keep hot’ facility (which ensures hot water is almost instantly available) and the Heatslave II’s in-built thermal store which enables the boiler to provide instant hot water for prolonged periods.

What is a thermal store?

A thermal store is a small tank integrated in the Greenstar Heatslave II combi, with the store containing the same water that is found in your radiators. By storing heat within the hot water store, the Heatslave II can instantly heat (via a heat exchanger) the cold water that enters the boiler and then passes to your hot tap or shower, increasing your hot water comfort.

Greenstar Heatslave II

Overview / Technical Details

 Our Greenstar Heatslave II boiler is the UK’s most popular oil combi boiler. This boiler has a sleek, modern design and is suitable for small, medium and large sized homes with one or two bathrooms.

  • Precise heating and hot water control
  • Smart modern design with controls concealed in a drawer
  • A range of models to meet the needs of smaller homes as well as two bathroom properties Suitable for kitchen installation – fits underneath a standard kitchen worktop
  • Compatible with a range of optional controls for greater efficiency and comfort
  • Works with water heated by green sources such as solar energy and wood fired boilers for increased efficiency.
  • Eco hot water mode saves energy
Technical Details

Greenstar Heatslave II 12/18

Greenstar Heatslave II 18/25

Greenstar Heatslave II 25/32

ErP Efficiency Rating – Hot Water

B

B

B

ErP Efficiency Rating – Central Heating

A

A

A

ErP Date Sheet

ErP Data Sheet

ErP Date Sheet

ErP Data Sheet

EasyControl Compatable

Yes

Yes

Yes

Solar Compatable

Yes

Yes

Yes

Control Options

Yes

Yes

Yes

Dimensions (mm) height x width x depth

855 x 520 x 600

855 x 520 x 600

855 x 520 x 600

Central heating output (kW)

18

25

32

Hot water flow rate (litres per minute)

15l/min

18l/min

22l/min

Greenstar Heatslave II External

Overview / Technical Details

Our Greenstar Heatslave II External boiler boasts the same features as the internal model. This boiler is suitable for small, medium and large sized homes with one or two bathrooms and is installed outside which frees up space within your home. The boiler is contained in a robust cabinet that protects the boiler in all weathers.

  • Precise heating and hot water control
  • Green powder coated cabinet
  • blends in with your garden and protects the boiler from the elements A range of models to meet the needs of smaller homes as well as two bathroom homes
  • Compatible with a range of optional controls for greater efficiency and comfort
  • Works with water heated by green sources such as solar energy and wood fired boilers for increased efficiency.
  • Eco hot water mode saves energy
  • Controls concealed in a drawer
  • Inbuilt frost protection
Technical Details

Greenstar Heatslave II External 12/18

Greenstar Heatslave II External 18/25

Greenstar Heatslave II External 25/32

ErP Efficiency Rating – Hot Water

B

B

B

ErP Efficiency Rating – Central Heating

A

A

A

ErP Date Sheet

ErP Data Sheet

ErP Date Sheet

ErP Data Sheet

EasyControl Compatable

Yes

Yes

Yes

Solar Compatable

Yes

Yes

Yes

Control Options

Yes

Yes

Yes

Dimensions (mm) height x width x depth

950 x 640 x 770

950 x 640 x 770

950 x 640 x 770

Central heating output (kW)

18

25

32

Hot water flow rate (litres per minute)

15l/min

18l/min

22l/min

CP Plumbing & Heating

Enquire Today